Advertisements
Advertisements
प्रश्न
How much electrical energy in joules does a 100 watt lamp consume : in 1 minute?
Advertisements
उत्तर
Time (t) = 60 s
Now, we can calculate the electrical energy consumed as,
Energy consumed = Power × Time
So,
Energy consumed = 100 × 60 J
= 6000 J
So, the energy consumed is 6000 J.
APPEARS IN
संबंधित प्रश्न
A pendulum is oscillating on either side of its rest position. The correct statement is:
State whether the object possess kinetic energy, potential energy, or both :
A stretched spring lying on the ground ____________.
What kind of energy is possessed by the following?
Water stored in the reservoir of a dam __________.
Fill in the blank with suitable word :
The ability of a body to do work is called __________. The ability of a body to do work because of its motion is called __________.
Fill in the blank with suitable word :
The sum of the potential and kinetic energies of a body is called __________ energy.
A ball of mass 0.5 kg slows down from a speed of 5 m/s so that of 3 m/s. Calculate the change in kinetic energy of the ball. State your answer giving proper units.
Name the device which converts electrical energy into mechanical energy.
Name the device or machine which convert :
Chemical energy into kinetic energy (or mechanical energy).
A ball falls to the ground as shown below :
What is the potential energy of ball at B?
A microphone converts :
