Question

Draw a circuit diagram of an electric circuit containing a cell, a key , an ammeter ,

a resistor of 4Ω in series with a combination of two resistors (8Ω each) in parallel

and a voltmeter across parallel combination. Each of them dissipate maximum

energy and can withstand a maximum power of 16W without melting. Find the

maximum current that can flow the three resistors.

Answer 1

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Answer 2

Answer:

Thus, resistance of parallel combination is equal to resistance of resistors in series. So, potential difference across 20 resistance will be same as potential difference across the

other two resistors which are connected in parallel.