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A 600 kΩ resistor is connected from the 200 V terminal to the common terminal of a dual scale voltmeter, as shown in figure (a). This modified voltmeter is then used to measure the voltage across the 360 kΩ resistor in the circuit in figure (b). What is the reading on the 500 V scale of the meter?
  • a)
    400 V
  • b)
    540 V
  • c)
    461.9 V
  • d)
    500 V
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
A 600 kΩ resistor is connected from the 200 V terminal to the co...
From the figure (a)
Internal resistance of galvanometer = 50 mV/1 mA
= 50 Ω
Now the circuit becomes,

Total internal resistance of voltmeter for 500 V scale,
Rm = 300 + [(199.5 + 0.05)||600]
= 300 + [200||600]
= 300 + 150 = 450 kΩ
Now, the voltmeter with internal resistance of 450 kΩ and 500 V scale is used to measure voltage in the circuit shown in fig (b).
Now, the circuit becomes

Because of voltmeter resistance, the load resistance becomes = 360||450 = 200 kΩ

By voltage division,
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A 600 kΩ resistor is connected from the 200 V terminal to the common terminal of a dual scale voltmeter, as shown in figure (a). This modified voltmeter is then used to measure the voltage across the 360 kΩ resistor in the circuit in figure (b). What is the reading on the 500 V scale of the meter?a)400 Vb)540 Vc)461.9 Vd)500 VCorrect answer is option 'D'. Can you explain this answer?
Question Description
A 600 kΩ resistor is connected from the 200 V terminal to the common terminal of a dual scale voltmeter, as shown in figure (a). This modified voltmeter is then used to measure the voltage across the 360 kΩ resistor in the circuit in figure (b). What is the reading on the 500 V scale of the meter?a)400 Vb)540 Vc)461.9 Vd)500 VCorrect answer is option 'D'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about A 600 kΩ resistor is connected from the 200 V terminal to the common terminal of a dual scale voltmeter, as shown in figure (a). This modified voltmeter is then used to measure the voltage across the 360 kΩ resistor in the circuit in figure (b). What is the reading on the 500 V scale of the meter?a)400 Vb)540 Vc)461.9 Vd)500 VCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 600 kΩ resistor is connected from the 200 V terminal to the common terminal of a dual scale voltmeter, as shown in figure (a). This modified voltmeter is then used to measure the voltage across the 360 kΩ resistor in the circuit in figure (b). What is the reading on the 500 V scale of the meter?a)400 Vb)540 Vc)461.9 Vd)500 VCorrect answer is option 'D'. Can you explain this answer?.
Solutions for A 600 kΩ resistor is connected from the 200 V terminal to the common terminal of a dual scale voltmeter, as shown in figure (a). This modified voltmeter is then used to measure the voltage across the 360 kΩ resistor in the circuit in figure (b). What is the reading on the 500 V scale of the meter?a)400 Vb)540 Vc)461.9 Vd)500 VCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE). Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
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