Two batteries, one of emf 18 volts and internal resistance $2Ω$ and the other of emf 12 volts and internal resistance $1Ω$ , are connected as shown. The voltmeter $V$ will record a reading of:
NEET 2005

Question

Two batteries, one of emf 18 volts and internal resistance 2Ω and the other of emf 12 volts and internal resistance 1Ω , are connected as shown. The voltmeter V will record a reading of: NEET 2005

TestHub · Accepted Answer

Reading of voltmeter = r 1 ​ 1 ​ + r 2 ​ 1 ​ r 1 ​ E 1 ​ ​ + r 2 ​ E 2 ​ ​ ​ = r 1 ​ + r 2 ​ E 1 ​ r 2 ​ + E 2 ​ r 1 ​ ​ Putting value we get 14 volt.

Physics - Current Electricity Question with Solution | TestHub

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