A slide wire potentiometer has 10 wires of 2 m each. With the help of a standard voltage source of 1.045 V, it is standardized by keeping the jockey at 104.5 cm. If the resistance of potentiometer wires is 2000 , then the value of working current is?

A slide wire potentiometer has 10 wires of 2 m each. With the help of

1.	A slide wire potentiometer has 10 wires of 2 m each. With the help of a standard voltage source of 1.045 V, it is standardized by keeping the jockey at 104.5 cm. If the resistance of potentiometer wires is 2000 , then the value of working current is?
A.	1 mA
B.	10 mA
C.	0.1 mA
D.	0.5 mA
Answer» C. 0.1 mA

Discussion

No Comment Found

Related MCQs

The simultaneous applications of signals x (t) and y (t) to the horizontal and vertical plates respectively, of an oscilloscope, produce a vertical figure of 8 displays. If P and Q are constants and x(t) = P sin (4t + 30), then y(t) is equal to _________
A slide wire potentiometer has 10 wires of 2 m each. With the help of a standard voltage source of 1.045 V, it is standardized by keeping the jockey at 104.5 cm. If the resistance of potentiometer wires is 2000 , then the value of working current is?
A galvanometer with a full-scale current of 10 mA has a resistance of 1000 . The multiplying power of a 100 shunt with this galvanometer is?
Resistance is measured by the voltmeter-ammeter method employing DC excitation and a voltmeter is connected directly across the unknown resistance. If the voltmeter and ammeter readings are subject to maximum possible errors of 2.4 % and 1% respectively, then the magnitude of the maximum possible percentage error in the value of resistance deduced from the measurement is?
A 100 A ammeter has an internal resistance of 100 . The range is to be extended to 500 A. The shunt required is of resistance __________
A DC ammeter has a resistance of 0.1 and its current range is 0-100 A. If the range is to be extended to 0-500 A, the meter requires which of the following shunt resistance?
A DC ammeter is rated for 15 A, 250 V. The meter constant is 14.4 A-s/rev. The meter constant at rated voltage may be expressed as __________
A 35 V DC supply is connected across a resistance in series with an unknown resistance R. a voltmeter having a resistance of 1.2 k is connected across 600 resistance and reads 5 V. The value of the known resistance is 600 . The value of resistance R will be?
A setup is used to measure resistance R. The ammeter and voltmeter resistance are 0.01 and 2000 respectively. Their readings are 2 A and 180 V respectively, giving a measured resistance of 90 . The percentage error in the measurement is?
Ra and Rd are the opposite arms of a Wheatstone bridge as are Rc and Rb. The source voltage is applied across Ra and Rc. Then when the bridge is balanced which one of the following is true?

A slide wire potentiometer has 10 wires of 2 m each. With the help of a standard voltage source of 1.045 V, it is standardized by keeping the jockey at 104.5 cm. If the resistance of potentiometer wires is 2000 , then the value of working current is?

Discussion

No Comment Found

Related MCQs

Reply to Comment