Physics Discuss

A house is supplied with a 240V a.c mains. To operate a door bell rated...

Share to WhatsApp
Question 568
A
30
B
240
C
248
D
450
E
1248
Explanation
\(\frac{E_p}{E_s} = \frac{n_p}{n_s}\)

ns = 30

Correct option: A

Try this quiz in in E-test/CBT Mode
switch to Physics in CBT Mode

Previous Question Next Question

Be the first to Comment on this

Sign in to post a comment


Question Map
Quiz link
Share Physics with your audience
Share to WhatsApp CBT mode Study mode copy link
​​​Help keep QUIZZERWEB running! 
A donation makes a contribution towards the costs, the time and effort that's going on in building and improving this platform.
 
Donate