Home
Class 12
PHYSICS
A 1250 W heater operates at 115V. What i...

A 1250 W heater operates at `115V`. What is the resistance of the heating coil?

A

`1.6 Omega`

B

`13. 5 Omega`

C

`1250 Omega`

D

`10.6 Omega`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

A 1600 W, 180 V heater operates at 180 V. The resistance of heating coil is

A 1600 W , 180 V heater operates at 180 V . The resistance of heating coil is

A 890 W radiant heater is constructed to operate at 115 V. (a) What is the current in the heater when the unit is operating? (b) What is the resistance of the heating coil? (c) How much thermal energy is produced in 5.00 h?

A 100 W heater coil is rated 200 V. Find the resistance of thwe coil.

A 1 k W heater is meant to operate at 200 V . (a) What is the resistance? (b) How much power will it consume if the line voltage drops to 100 V ? ( c ) How many units of electrical energy will it consume in a month ( of 30 days) if it operates 10 h daily at the specified voltage ( 200 V) ?

(a) How much current will an electric bulb draw from a 220 V source, if the resistance of the bulb filament is 1200 Omega ? (b) How much current will an electric heater draw from a 220 V source, if the resistance of the heater coil is 100 Omega ?

How much current will an electric heater coil draw from a 220 V source, if the resistance of the heater is 100Omega ?

A room heater is rated 500 W, 220V . (a) Find the resistance of its coil. (b) If the supply voltage drops to 200 V , what will be the power consumed? ( c) If an electric bulb rated 100 W, 220 V is connected in series with this heater, what will be the power consumed by the heater and by the bulb when the supply is at 220 V ?

A 120 V potential difference is applied to a space heater that dissipates 1500W during operation. (a) What is the resistance during operation? (b) At what rate do electrons flow through any cross section of the heater element?