Question

draw a circuit diagram of an electric circuit containing a cell,a key,an ammeter, a resistor of 4 ohmin series with a combination of two resistors (8 ohm each) in parallel and a voltmeter across parallel combination. Each of them dissipate maximum energy and can withstand a màximum power of 16W without melting. find the maximum current that can flow through the three resistors.

Answer 1

Answer:

Your answer is down below

Explanation:

Acc to the question,

P=16W

R1=4Ω

R2=8Ω

R3=8Ω

Total resistance = 4+ 1/(1/8+1/8)=4+4=8Ω

P= current square * resistance

$16 = I^{2} R= I^{2} *8\\2 = I^{2} \\I = \sqrt{2} =1.44 A$

MAXIMUM CURRENT = 1.44A

- DR.REX BIRD