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An ideal voltmeter V is connected to a 2...

An ideal voltmeter `V` is connected to a `2.0 Omega` resistor and a battery with emf `5.0 V` and internal resistance `0.5 Omega` as shown in figure
(a) What is the current in the `2.0 Omega` resistor?
(b) What is the terminal voltage of the battery?
(c) What is the reading of the voltmeter?

Text Solution

Verified by Experts

The correct Answer is:
B
a. Ideal voltmeter means infinite resistance
`:. i=0`
b. `V=E (if i=0)`
c. Reading of voltmeter `=E=5V`
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Knowledge Check

  • A battery of emf 10 V and internal resistance 3Omega is connected to a resistor. The current in the circuit is 0.5 A . The terminal voltage of the battery when the circuit is closed is

    A
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    B
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