Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityElectrical PowerEasy2 minPYQ_2020

PhysicsEasysingle choice

A heater coil is cut into two equal parts and only one part is now used in the heater. The heat generated will now be

Options:

Answer:

Solution:

The resistance of full coil = $R$

The resistance of each half piece = $\frac{R}{2}$

$∴$ $\frac{H_{2}}{H_{1}} = \frac{V^{2} t}{R / 2} \times \frac{R}{V^{2} t} = \frac{2}{1}$

$∴$ $H_{2} = 2 H_{1}$

The heat generated will now be doubled.

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Current ElectricitySubtopic:Electrical Power

⏱ 2mℹ️ Source: PYQ_2020

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