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Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityElectrical PowerEasy2 minQB

PhysicsEasynumerical

The energy dissipated by a resistor is $10 mJ$ in $1 s$ , when an electric current of $2 mA$ flows through it. The resistance is ________ $Ω$ . (Round off to the Nearest Integer)

Answer:

2500.00

Solution:

$Q = i^{2} R T$

$R = \frac{Q}{i ^{2} t} = \frac{10 \times 1 0 ^{- 3}}{4 \times 1 0 ^{- 6} \times 1} = 2500Ω$

Stream:JEESubject:PhysicsTopic:Current ElectricitySubtopic:Electrical Power

⏱ 2mℹ️ Source: QB

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