CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Alternating Current Applied to an Inductor

A 120 V, 60 W...

Question

A 120 V, 60 W lamp is to be operated on 220 V, 50 Hz supply mains Calculate what value of pure inductance which would be required so that the lamp runs on correct value of power

A

1.174

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

2.348

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

3.522

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

4.696

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A 1.174
A 120 V, 60 W lamp is to be operated on 220 V, 50 Hz supply mains
$V_{L} = 2 π η l i = 184.4 v$
$L = 1.174 H$

Suggest Corrections

thumbs-up

0

Similar questions

20

5

watt lamp is used on a.c mains of

200

50

c.p.s. Calculate the value of
(a) capacitance (b) inductance to be put in series to run the lamp
(c) how much pure resistance should be included in place of the above device so that lamp can run on its voltage?

Q. A coil is needed to operate an arc lamp of 150 V, 50 Hz. The lamp of resistance of 5 ohms when running at 10A. Find inductance of the choke coil, if the same arc lamp is to be operated on 160 V, DC. What is the additional resistance required?

80 V - 800 W

heater is to be operated on a

100 V - 50 H z

supply. Calculate the inductance of the choke required.

Q. A choke coil is needed to operate an arc lamp at

160 V

50 H z

. The arc lamp has an effective resistance of

5 Ω

when running at

10 A

(rms). Calculate the inductance of the choke coil. If the same arc lamp is to be operated on

160 V

DC, what additional resistance would be required. Compare the power losses in both the cases.

Q. What should be the value of self inductance of an indicator that should be connected to

220

50

Hz supply so that a maximum current of

0.9

A flows through it?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Alternating Current Applied to an Inductor

PHYSICS

Watch in App

explore_more_icon

Explore more

Alternating Current Applied to an Inductor

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon