A battery, an open switch and a resistor are connected in series as shown below. Consider the following three statements concerning the circuit. A voltmeter will read zero if it is connected across points
(i) P and T
(ii) P and Q
(iii) Q and T
Which one of the above is/are true?
Text Solution
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when the switch is not not closed, a voltmeter connected across P and T will not show any potential difference. Between Q and T also there is no potential difference because circuit is not complete. Therefore in both the cases, the voltmeter will read zero. Between P and Q, the emf of the battery will be given.
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