1
Which device converts electrical signals into light?
2
The horizontal deflection in CRO is produced by:
3
In Ohm’s Law experiment, the graph between V and I is:
4
The main function of a diode is to:
5
EMF of a cell is measured when the circuit is:
6
Which wave property determines the color of light?
7
Electricity is widely used because it is:
8
When a transistor is used as a switch, it operates in:
9
Which electromagnetic wave carries the least energy?
10
LEDs are preferred over filament bulbs because they:
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