Home
Class 12
PHYSICS
The energy consumed in 1 kilowatt electr...

The energy consumed in 1 kilowatt electric heater in 30 seconds will be

A

`6xx10^(2)J`

B

`4.99xx10^(7)J`

C

`9.8xx10^(6)J`

D

`3xx10^(4)J`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • HEATING AND CHEMICAL EFFECT OF CURRENT

    ERRORLESS |Exercise Heating Effect of Current|2 Videos

  • HEATING AND CHEMICAL EFFECT OF CURRENT

    ERRORLESS |Exercise Chemical Effect Current|1 Videos

  • ELECTROSTATICS

    ERRORLESS |Exercise Ordinary Thinking Objective Questions (Electric Flux and Gauss.s Law)|28 Videos

  • KINETIC THEORY OF GASES

    ERRORLESS |Exercise QUESTIONS|126 Videos

Similar Questions

Explore conceptually related problems

An electric heater of 1200 W is operated for 3 hrs daily. What will be the electrical consumption expenses for that in the month of June ? (The electric company charges Rs 5 per unit of energy.) Analyse Step 1 : To get the electrical consumption expenses of the month of June, we need to know the energy consumed by the electric heater in that month in terms of units. Step 2 : Key factors to understand : i. To find the expenses, "Electrical consumption expenses "="Energy consumed (in units)"xx"charge per unit " ii. "1 unit "="1 kWh" i.e. in order to find the energy inunit, we need to find it in terms of kWh (kilowatt hour)

The electrical energy consumed by an electric heater in a duration of 3 h is 0.6 K W h. What is the power consumed by the heater?

Write commercial and SI units of energy. Calculate the cost of electric energy consumed by an electric heater rated with 50 W used for 2 hours daily in the month of April. The cost of one unit of electric energy is Rs. 5.

The energy supply being cut-off, an electric heater element cools down to the temperature of its surrounding, but it will not cool further because

A 2k W heater used for 1 h every day consumes the following electrical energy in 30 days

The rating of an electric heater is1100 w, 220V calculate the resistance when it operates at 220 v, also calculate the energy consumed in kwh in the month of November, if the heater is used daily for 4 hours at the rated voltage.