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

The circuit is shown as the figure: