Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app

MHT CET 202623 AprilMorning Shift

Exam: MHT CET
Year: 2026
Date: 23 April
Shift: Morning Shift
Subject: Physics
Chapter: Alternating Current

MHT CET 2026 · 23 April · Morning Shift · Physics · Alternating Current

The output of a step-down transformer is measured to be 56 V when...

The output of a step-down transformer is measured to be

56

V when connected to

14

W light bulb. The value of peak current is (in A)

Options

A $\dfrac{1}{\sqrt{2}}$
B $\dfrac{1}{\sqrt{3}}$
C $\dfrac{1}{2\sqrt{2}}$
D $\dfrac{1}{3\sqrt{2}}$

Correct answer

C. $\dfrac{1}{2\sqrt{2}}$

Step-by-step solution

Given output power

P = 14

W and output RMS voltage

V_{rms} = 56

V.

Using the relation

P = V_{rms} I_{rms}

:

I_{rms} = \dfrac{P}{V_{rms}} = \dfrac{14}{56} = \dfrac{1}{4}

A

The peak current

I_0

is given by

I_0 = \sqrt{2} I_{rms}

.

I_0 = \sqrt{2} \times \dfrac{1}{4} = \dfrac{1}{2\sqrt{2}}

A

Answer:

\dfrac{1}{2\sqrt{2}}

Practice Alternating Current on Quantrex Academy →

More from Alternating Current

A step down transformer connected to an a.c. mains of 220 V is made to operate at 5.5 V… MHT CET Medical 2026 Which phasor diagram represents LCR circuit at resonance? MHT CET Medical 2026 For an R-L series circuit, the power factor is 3 2 , for R-L frequency f Hz. If the… MHT CET Medical 2026 In an AC circuit, the current is I = 100 (5t) A. The value of I_ rms is MHT CET Medical 2026 The ratio of power factor of purely resistive circuit to purely reactive circuit is ( 0^… MHT CET Medical 2026 In an LCR series circuit, at resonance, MHT CET Medical 2026 In an AC circuit, E and I are given by E = 150 (150t) V and I = 150 (150t + (π)/(3)) A.… MHT CET Medical 2026 A series LCR circuit is connected across a source E of e.m.f. E=15 ( 50 π t- (π)/(3)).… MHT CET Medical 2026 Full Alternating Current list All MHT CET Medical PYQs