Home
Class 10
PHYSICS
There is heat energy stored in coal....

There is heat energy stored in coal.

Text Solution

Verified by Experts

False. Coal has chemical energy.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • TOWARDS GREEN ENERGY

    CHETAN PUBLICATION|Exercise ANSWER THE FOLLOWING IN ONE SENTENCE|6 Videos

  • TOWARDS GREEN ENERGY

    CHETAN PUBLICATION|Exercise CHOOSE AND WRITE THE CORRECT OPTION|13 Videos

  • TOWARDS GREEN ENERGY

    CHETAN PUBLICATION|Exercise MATCH THE COLUMNS AND COMPLETE THE TABLE|3 Videos

  • SPACE MISSIONS

    CHETAN PUBLICATION|Exercise ASSIGNEMENT - 10 (ANSWER THE FOLLOWING) : ANY 1|2 Videos

Similar Questions

Explore conceptually related problems

What is heat energy?

Obtain the expression for the energy stored in a parallel plate capacitor.

Knowledge Check

  • The heat energy developed in a resistor is independent of :

    A
    the direction of flow of current
    B
    the magnitude of flow of current
    C
    the strength of emf
    D
    All the three

    • Similar Questions

    Explore conceptually related problems

    Consider the situation of the previous problem. Find the average electric field energy stored in the capacitor and the average magnetic field energy stored in the coil.

    a. Obtain the expression for the magnetic energy stored in a solenoid in terms of magnetic field B, area A and length l of the solenoid. b. How does this magnetic energy compare with the electrostatic energy stored in a capacitor?

    An LC circuit contains a 20 mH inductor and a 50 muF capacitor with an initial charge of 10 mС. The resistance of the circuit is negligible. Let the instant the circuit is closed be t = 0. a. What is the total energy stored initially? Is it conserved during LC oscillations? b. What is the natural frequency of the circuit? c. At what time is the energy stored i. completely electrical (i.e., stored in the capacitor) ii. completely magnetic (i.e., stored in the inductor) d. If a resistor is inserted in the circuit, how much energy is eventually dissipated as heat?

    Suppose the initial charge on the capacitor is 6 mC. What is the total energy stored in the circuit initially? What is the total energy at later time?

    By evaluating int i^(2)Rdt ,show that when a capacitor is charged by connecting it to a battery through a resistor,the energy dissipated as heat equals the energy stored in the capacitor.

    A 12pF capacitor is connected to a 50V battery. How much electrostatic energy stored in the capacitor?

    A capacitor of capacity 10 muF is subjected to charge by a battery of 10V. Calculate the energy stored in the capacitor.

    Home
    Profile