Home
Class 12
PHYSICS
The ammeter A reads 2A and the voltmeter...

The ammeter A reads 2A and the voltmeter V reads 20V, the value of resistance R is (Assuming finite resistance's of ammeter and voltmeter)

A

Exactly 10 ohm

B

Less than 10 ohm

C

More than 10 ohm

D

We cannot definitely say

Text Solution

Verified by Experts

The correct Answer is:
C

`2R gt 20 rArr R = 10 Omega`
Promotional Banner

Similar Questions

Explore conceptually related problems

In given figure the ammeter A reads 5 A and voltmeter V reads 40 V. The actual value of resistance R is

In the adjacent circuit the ammeter reads 5.0 A and voltmeter reads 20V. The value of resistance R is

In given figure an ammeter reads 5 A and voltmeter reads 40 V. The actual value of resistance R is

In the circuit shown below, the ammeter A reads 5 A and the voltmeter V reads 20 V The correct value of resistance R is

If the resistance R_(1) is increased how will the reading of the ammeter and voltmeter change

In the following diagram ammeter reading is 4A, voltmeter reading is 20V, the value of R is

If the voltmeter reads 0.2 V and the ammeter reads 0.101A, the resistance of the voltmeter is (in ohm)

The voltmeter V in the figure. Reads 117V and the ammeter A reads 0*13A . The resistance of the voltmeter is 9000Omega and the resistance of ammeter is 0*015Omega . Compute (i) the resistance R, (ii) the power input to R.

In the given circuit, the ratio of voltmeter reading to the ammeter reading is R' . If resistance of ammeter is RA and that of voltmeter RV , then