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Physics - Modern Physics Question with Solution | TestHub

PhysicsModern PhysicsAtomic structureEasy2 minPYQ_2010

PhysicsEasysingle choice

Using an AC voltmeter the potential difference in the electrical line in a house is read to be $234 V$ . If line frequency is known to be 50 cycles/s, the equation for the line voltage is

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Answer:

Solution:

$E = E_{0} sin ω t$ Voltmeter read rms value $∴ E_{0} = 2 \times 234 V = 331 V$ and $ω t = 2 πn t = 2 π \times 50 \times t = 100 π t$ Thus, the equation of the line voltage $E = 331 sin (100 π t)$

Stream:VITEEESubject:PhysicsTopic:Modern PhysicsSubtopic:Atomic structure

⏱ 2mℹ️ Source: PYQ_2010

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