Question

Q10. Name the transformation of energy involved in these casesa. Electric Heater
b. Dynamo
c. Microphone
d. Electric Cell
e. Headphone
f. Photoelectric Cell
g. When Coal burns​

Answer 1

Answer:

Electric heater is the answer

Answer 2

Answer:

a) Electrical energy to heat and light energy

b) Kinetic energy to hydroelectric energy

c) Sound energy to electrical signals. These signals then reach the speakers ,where they are again converted into sound energy.

d) Chemical energy to electrical energy

e) The headphone receives electrical signals from the connected device and then converts these signals to sound energy, which then reaches our ears.

f) Chemical energy of the sun is converted into electrical energy.

g) Chemical energy to heat and light energy