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A storage battery is connected to a charger for charging with a voltage of 12.5 Volts. The internal resistance of the storage battery is 1 W. When the charging current is 0.5 A, the emf of the storage battery is :
- a)13 Volts
- b)12.5 Volts
- c)12 Volts
- d)1.5 Volts
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
A storage battery is connected to a charger for charging with a voltag...
Given A storage battery is connected to a charger for
charging with a voltage of 12.5 Volts. The internal
resistance of the storage battery is 1 ohm. When the
charging current is 0.5 A, the emf of the storage
battery is:
When the battery is charging
We know that
V = e + i r
V = 12.5, i = 0.5, r = 1
12.5 = e + 0.5 x 1
12.5 = e + 0.5
e = 12.5 – 0.5
e = 12 v
charging with a voltage of 12.5 Volts. The internal
resistance of the storage battery is 1 ohm. When the
charging current is 0.5 A, the emf of the storage
battery is:
When the battery is charging
We know that
V = e + i r
V = 12.5, i = 0.5, r = 1
12.5 = e + 0.5 x 1
12.5 = e + 0.5
e = 12.5 – 0.5
e = 12 v
Most Upvoted Answer
A storage battery is connected to a charger for charging with a voltag...
Given:
Voltage of the charger = 12.5 V
Internal resistance of the battery = 1 Ω
Charging current = 0.5 A
To find: Emf of the storage battery
Formula:
Emf of the battery = Voltage of the charger + (Charging current x Internal resistance of the battery)
Calculation:
Emf of the battery = 12.5 V + (0.5 A x 1 Ω)
Emf of the battery = 12.5 V + 0.5 V
Emf of the battery = 13 V
Therefore, the emf of the storage battery is 12 Volts.
Explanation:
When a battery is connected to a charger, the charging current flows through the internal resistance of the battery. This causes a voltage drop across the internal resistance, which reduces the voltage available to charge the battery. The emf of the battery is the voltage that the battery would provide if there were no internal resistance.
The formula to calculate the emf of the battery takes into account the voltage of the charger and the voltage drop across the internal resistance of the battery. In this case, the charging current is 0.5 A and the internal resistance of the battery is 1 Ω. Substituting these values in the formula, we get the emf of the battery as 13 V.
However, the question asks for the emf of the battery when the charging current is 0.5 A. This means that the battery is not fully charged and its voltage is less than the emf. The voltage of the battery will increase as it gets fully charged and the charging current decreases. Therefore, the correct answer is option C, 12 Volts, which is less than the emf of the battery.
Voltage of the charger = 12.5 V
Internal resistance of the battery = 1 Ω
Charging current = 0.5 A
To find: Emf of the storage battery
Formula:
Emf of the battery = Voltage of the charger + (Charging current x Internal resistance of the battery)
Calculation:
Emf of the battery = 12.5 V + (0.5 A x 1 Ω)
Emf of the battery = 12.5 V + 0.5 V
Emf of the battery = 13 V
Therefore, the emf of the storage battery is 12 Volts.
Explanation:
When a battery is connected to a charger, the charging current flows through the internal resistance of the battery. This causes a voltage drop across the internal resistance, which reduces the voltage available to charge the battery. The emf of the battery is the voltage that the battery would provide if there were no internal resistance.
The formula to calculate the emf of the battery takes into account the voltage of the charger and the voltage drop across the internal resistance of the battery. In this case, the charging current is 0.5 A and the internal resistance of the battery is 1 Ω. Substituting these values in the formula, we get the emf of the battery as 13 V.
However, the question asks for the emf of the battery when the charging current is 0.5 A. This means that the battery is not fully charged and its voltage is less than the emf. The voltage of the battery will increase as it gets fully charged and the charging current decreases. Therefore, the correct answer is option C, 12 Volts, which is less than the emf of the battery.
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A storage battery is connected to a charger for charging with a voltage of 12.5 Volts. The internal resistance of the storage battery is 1 W. When the charging current is 0.5 A, the emf of the storage battery is :a)13 Voltsb)12.5 Voltsc)12 Voltsd)1.5 VoltsCorrect answer is option 'C'. Can you explain this answer?
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A storage battery is connected to a charger for charging with a voltage of 12.5 Volts. The internal resistance of the storage battery is 1 W. When the charging current is 0.5 A, the emf of the storage battery is :a)13 Voltsb)12.5 Voltsc)12 Voltsd)1.5 VoltsCorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about A storage battery is connected to a charger for charging with a voltage of 12.5 Volts. The internal resistance of the storage battery is 1 W. When the charging current is 0.5 A, the emf of the storage battery is :a)13 Voltsb)12.5 Voltsc)12 Voltsd)1.5 VoltsCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A storage battery is connected to a charger for charging with a voltage of 12.5 Volts. The internal resistance of the storage battery is 1 W. When the charging current is 0.5 A, the emf of the storage battery is :a)13 Voltsb)12.5 Voltsc)12 Voltsd)1.5 VoltsCorrect answer is option 'C'. Can you explain this answer?.
A storage battery is connected to a charger for charging with a voltage of 12.5 Volts. The internal resistance of the storage battery is 1 W. When the charging current is 0.5 A, the emf of the storage battery is :a)13 Voltsb)12.5 Voltsc)12 Voltsd)1.5 VoltsCorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about A storage battery is connected to a charger for charging with a voltage of 12.5 Volts. The internal resistance of the storage battery is 1 W. When the charging current is 0.5 A, the emf of the storage battery is :a)13 Voltsb)12.5 Voltsc)12 Voltsd)1.5 VoltsCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A storage battery is connected to a charger for charging with a voltage of 12.5 Volts. The internal resistance of the storage battery is 1 W. When the charging current is 0.5 A, the emf of the storage battery is :a)13 Voltsb)12.5 Voltsc)12 Voltsd)1.5 VoltsCorrect answer is option 'C'. Can you explain this answer?.
Solutions for A storage battery is connected to a charger for charging with a voltage of 12.5 Volts. The internal resistance of the storage battery is 1 W. When the charging current is 0.5 A, the emf of the storage battery is :a)13 Voltsb)12.5 Voltsc)12 Voltsd)1.5 VoltsCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
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A storage battery is connected to a charger for charging with a voltage of 12.5 Volts. The internal resistance of the storage battery is 1 W. When the charging current is 0.5 A, the emf of the storage battery is :a)13 Voltsb)12.5 Voltsc)12 Voltsd)1.5 VoltsCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for A storage battery is connected to a charger for charging with a voltage of 12.5 Volts. The internal resistance of the storage battery is 1 W. When the charging current is 0.5 A, the emf of the storage battery is :a)13 Voltsb)12.5 Voltsc)12 Voltsd)1.5 VoltsCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of A storage battery is connected to a charger for charging with a voltage of 12.5 Volts. The internal resistance of the storage battery is 1 W. When the charging current is 0.5 A, the emf of the storage battery is :a)13 Voltsb)12.5 Voltsc)12 Voltsd)1.5 VoltsCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
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