Questions
A current of 3 A flows through the resistor as shown in the circuit. The power dissipated in the resistor is
detailed solution
Correct option is D
Voltage across 2 Ω is the same as voltage across arm containing 1 Ω and 5 Ω resistances. Voltage across 2 Ω resistance,V=2 × 3=6 VSo, voltage across lowest arm,V1 = 6 VCurrent across 5 Ω, I=61+5 =1 AThus, power across 5 ΩP = I2 R = (1)2 x 5 = 5 WTalk to our academic expert!
Similar Questions
A resistor R is connected across a battery of emf 12 V. It observed that terminal potential differenceis 9 V and the power delivered to resistor is 18 W. Internal resistance of the battery ‘r’ and the resistance R are respectively
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