A bulb of resistance 280 Ω is supplied with a 200 V A C supply. What is the peak current?

Open MARKS Web Download App

Search any question & find its solution

Question: Answered & Verified by Expert

A bulb of resistance

280 Ω

is supplied with a

200 V

A C

supply. What is the peak current?

PhysicsAlternating CurrentAP EAMCETAP EAMCET 2021 (19 Aug Shift 2)

Options:

A Nearly $1 A$
B Nearly $2 A$
C Nearly $1.4 A$
D Nearly $2.8 A$

Solution:

1063 Upvotes Verified Answer

The correct answer is: Nearly

1 A

Peak voltage, $V_{peak} = \sqrt{2} V$

Peak current, $I_{peak} = \frac{V_{peak}}{R} = \frac{\sqrt{2} V}{R}$

$\Rightarrow I_{peak} = \frac{\sqrt{2} \times 200}{280} \approx 1 A$

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.

Use on iOS or Desktop Download from Google Play