Home
Class 11
PHYSICS
In the circuit shown, voltmeter is ideal...

In the circuit shown, voltmeter is ideal and its least count is 0.1 V. The least count of ammeter is 1 mA. Reading of the voltmeter be 30.0 V and the reading of ammeter is 0.020 A. We shell calculate the value of resistance R within error limits.

Text Solution

Verified by Experts

`V=30.0 ,I=0.020A,R=(V)/(I)=(30.0)/(0.020)=1.50 k Omega`
Error : As `R=(V)/(I):. (DeltaR)/(R)=(DeltaV)/(V)+(DeltaI)/(I)`
`rArr Delta R=R((DeltaV)/(V)+(DeltaI)/(I))=1.50xx10^(3)((0.1)/(30.0)+(0.001)/(0.020))=0.080 kOmega`
Promotional Banner

Topper's Solved these Questions

  • WAVES AND OSCILLATIONS

    ALLEN|Exercise Part-3(Example)|32 Videos

  • WAVES AND OSCILLATIONS

    ALLEN|Exercise Part-1(Exercise-01)|53 Videos

  • WAVES AND OSCILLATIONS

    ALLEN|Exercise Part-1(Exercise-05)[B]|42 Videos

  • SEMICONDUCTORS

    ALLEN|Exercise Part-3(Exercise-4)|51 Videos

Similar Questions

Explore conceptually related problems

An ideal voltmeter V and ideal ammeter A are connected in a circuit as shown in the figure. If the reading of the voltmeter is 32 V, the reading of ammeter will be

In the circuit figure, the voltmeter reads 30 V. The resistance of the voltmeter is

In the circuit shown in figure ammeter and voltmeter are ideal. If E=4 V,R=9Omega and r=1Omega then readings of ammeter and voltmeter are

In the circuit shown in figure ammeter and voltmeter are ideal. If E=4 V,R=9Omega and r=1Omega then readings of ammeter and voltmeter are

In the circuit shown below, each battery is 5V and has an internal resistance of 0.2 ohm. The reading in the ideal voltmeter V is .

In the circuit shown the resistance of voltmeter is 10000 ohm and that of ammeter is 20 ohm . The ammeter reading is 0.10 amp and voltmeter reading is 12 volts. Then R is equal to

In the circuit shown, A and V are ideal ammeter and voltmeter respectively. Reading of the voltmeter will be

in the circuit shown in the figure, each battery is of 5 V and has an internal resistance of 0.2 Omega What is the reading of the ideal voltmeter V

In the circuit shown in Fig. 6.50 , an idel ammeter and an ideal voltmeter are used. Whan the key is open, the voltmeter reads 1.53 V . When the key is closed, the ammeter reads 1.0 A and the voltmeter reads 1.03 V . The resistance R is

In the diagram shown, the reading of voltmeter is 20 V and that of ammeter is 4 A . The value of R should be (Consider given ammeter and voltmeter are not ideal)