Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACSeries AC CircuitsEasy2 minPYQ_2020
PhysicsEasysingle choice

An electric motor which is loaded has an effective resistance of30 Ωand an inductive reactance of40 Ω. If the motor is powered by a source with a maximum voltage of420 V, the maximum current is

Options:

Answer:
B
Solution:

Given,

Effective resistance,R=30 Ω

Inductive reactance,XL=40 Ω

The effective impedance

Z=R2+XL2

=302+402

=900+1600

=2500

=50Ω

The maximum current,

I=VZ

=42050

=8.4 A

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:EMI/ACSubtopic:Series AC Circuits
⏱ 2mℹ️ Source: PYQ_2020

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