SSC MTS EXAM

SSC

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A television works by transforming electrical energy into what other kinds of energy?
A
Light, thermal, and sound
B
Thermal, chemical, and solar
C
Sound, mechanical, and electrical
D
Light, chemical, and mechanical
Explanation: 

Detailed explanation-1: -A television converts electrically transfered energy into light, sound and mostly heat (thermal / infra-red) energy. Eventually the light and sound are absorbed and converted to thermal/infrared.

Detailed explanation-2: -When we turn on the television, electrical energy changes into light and sound.

Detailed explanation-3: -The process in which the electrical energy is converted to heat energy is called Electric heating and the heating element inside every electric heater is the resistor. It works on the principle of Joule heating and, thus an electric current passing through the resistor will convert the electricity into heat energy.

There is 1 question to complete.