10th Class Physics MCQS
AND gate can be formed by using two:
OR gates
NOT gates
NOR gates
Nand gates
The process by which electrons are emitted by a hot metal surface is known as:
Conduction
Thermionic emission
Boiling
Evaportion
Power of hair dryer is:
1000 W
750 W
10 W
75 W
SI unit of capacitance is:
Watt
Farad
Volt
Joule
To protect the gold leaves of electroscope from the external electric disturbances, the aluminum foil is grounded by a thin wire, which is made up of:
Brass
Copper
Silver
Aluminum
1 Pico farad is equal to:
1012F
10-12F
10 6F
10 9F
Capacitors are used to store:
Charge
Voltage
Resistance
Current
The converter of digital to analogue signal is:
DTC
DAC
ADC
DATC
If one of the resistors in a parallel circuit is removed, the total resistance will be:
Doubled
Remain same
Decreased
Increased
Two switches attached in series work on which operation?
OR operation
NOT operation
NOR operation
AND operation
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