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The primary of a transformer when connected toa dc battery of 10 volt draws a current of 1 mA.The number of turns of the primary andsecondary windings are 50 and 100 respectively.The voltage in the secondary and the currentdrawn by the circuit in the secondary arerespectively [NEET Kar. 2013]
- a)20 V and 0.5 mA
- b)20 V and 2.0 mA
- c)10 V and 0.5 mA
- d)Zero and therefore no current
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
The primary of a transformer when connected toa dc battery of 10 volt ...
A transformer is essentially an AC device.
DC source so no mutual induction between
coils
⇒ E2 = 0 and I2 = 0
DC source so no mutual induction between
coils
⇒ E2 = 0 and I2 = 0
Most Upvoted Answer
The primary of a transformer when connected toa dc battery of 10 volt ...
Solution:
Given data:
Primary voltage (V1) = 10 V
Primary current (I1) = 1 mA = 0.001 A
Number of turns in the primary (N1) = 50
Number of turns in the secondary (N2) = 100
Step 1: Calculation of primary current
Primary current (I1) = Secondary current (I2) × (N2/N1)
0.001 = I2 × (100/50)
I2 = 0.0005 A = 0.5 mA
Step 2: Calculation of secondary voltage
Secondary voltage (V2) = Primary voltage (V1) × (N2/N1)
V2 = 10 × (100/50)
V2 = 20 V
Therefore, the voltage in the secondary is 20 V.
Step 3: Calculation of secondary current
The current drawn by the circuit in the secondary is zero because the transformer is connected to a DC battery. Transformers work only on AC supply, and the DC supply does not cause any current flow in the secondary.
Therefore, the correct answer is option D, i.e., zero and therefore no current.
Given data:
Primary voltage (V1) = 10 V
Primary current (I1) = 1 mA = 0.001 A
Number of turns in the primary (N1) = 50
Number of turns in the secondary (N2) = 100
Step 1: Calculation of primary current
Primary current (I1) = Secondary current (I2) × (N2/N1)
0.001 = I2 × (100/50)
I2 = 0.0005 A = 0.5 mA
Step 2: Calculation of secondary voltage
Secondary voltage (V2) = Primary voltage (V1) × (N2/N1)
V2 = 10 × (100/50)
V2 = 20 V
Therefore, the voltage in the secondary is 20 V.
Step 3: Calculation of secondary current
The current drawn by the circuit in the secondary is zero because the transformer is connected to a DC battery. Transformers work only on AC supply, and the DC supply does not cause any current flow in the secondary.
Therefore, the correct answer is option D, i.e., zero and therefore no current.
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The primary of a transformer when connected toa dc battery of 10 volt draws a current of 1 mA.The number of turns of the primary andsecondary windings are 50 and 100 respectively.The voltage in the secondary and the currentdrawn by the circuit in the secondary arerespectively [NEET Kar. 2013]a)20 V and 0.5 mAb)20 V and 2.0 mAc)10 V and 0.5 mAd)Zero and therefore no currentCorrect answer is option 'D'. Can you explain this answer?
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The primary of a transformer when connected toa dc battery of 10 volt draws a current of 1 mA.The number of turns of the primary andsecondary windings are 50 and 100 respectively.The voltage in the secondary and the currentdrawn by the circuit in the secondary arerespectively [NEET Kar. 2013]a)20 V and 0.5 mAb)20 V and 2.0 mAc)10 V and 0.5 mAd)Zero and therefore no currentCorrect answer is option 'D'. 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 The primary of a transformer when connected toa dc battery of 10 volt draws a current of 1 mA.The number of turns of the primary andsecondary windings are 50 and 100 respectively.The voltage in the secondary and the currentdrawn by the circuit in the secondary arerespectively [NEET Kar. 2013]a)20 V and 0.5 mAb)20 V and 2.0 mAc)10 V and 0.5 mAd)Zero and therefore no currentCorrect answer is option 'D'. 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 The primary of a transformer when connected toa dc battery of 10 volt draws a current of 1 mA.The number of turns of the primary andsecondary windings are 50 and 100 respectively.The voltage in the secondary and the currentdrawn by the circuit in the secondary arerespectively [NEET Kar. 2013]a)20 V and 0.5 mAb)20 V and 2.0 mAc)10 V and 0.5 mAd)Zero and therefore no currentCorrect answer is option 'D'. Can you explain this answer?.
The primary of a transformer when connected toa dc battery of 10 volt draws a current of 1 mA.The number of turns of the primary andsecondary windings are 50 and 100 respectively.The voltage in the secondary and the currentdrawn by the circuit in the secondary arerespectively [NEET Kar. 2013]a)20 V and 0.5 mAb)20 V and 2.0 mAc)10 V and 0.5 mAd)Zero and therefore no currentCorrect answer is option 'D'. 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 The primary of a transformer when connected toa dc battery of 10 volt draws a current of 1 mA.The number of turns of the primary andsecondary windings are 50 and 100 respectively.The voltage in the secondary and the currentdrawn by the circuit in the secondary arerespectively [NEET Kar. 2013]a)20 V and 0.5 mAb)20 V and 2.0 mAc)10 V and 0.5 mAd)Zero and therefore no currentCorrect answer is option 'D'. 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 The primary of a transformer when connected toa dc battery of 10 volt draws a current of 1 mA.The number of turns of the primary andsecondary windings are 50 and 100 respectively.The voltage in the secondary and the currentdrawn by the circuit in the secondary arerespectively [NEET Kar. 2013]a)20 V and 0.5 mAb)20 V and 2.0 mAc)10 V and 0.5 mAd)Zero and therefore no currentCorrect answer is option 'D'. Can you explain this answer?.
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