X Physics
What is the unit of Resistance?
Ohm
Volt
Ampere
Coulomb
We have three resistors of Resistance 2 ohm each. How should it be connected to get an equivalent resistance of 3 ohm?
Parallel
Series
Two parallel with one series
Two series with one parallel
Which rule needs to applied to find out the polarity developed on either side of the loop
Clock Rule
Thumb Rule
Left Hand Rule
Right Hand Rule
Which rule needs to applied to find out the polarity developed on either side of the loop
Clock Rule
Thumb Rule
Left Hand Rule
Right Hand Rule
What is the commercial unit of energy?
Watt second
Joule
Kilowatt
Kilowatt hour
Find the amount of current passing through a wire of Resistance 3 ohm when connected to a battery of 6 V
1 A
2 A
3 A
4 A
An electric bulb is rated 220V and 100W. When it is operated on 110V, the power consumed will be-
100 W
75 W
50 W
25 W
The magnetic field inside a current carrying solenoid ________
Is Zero
Decreases towards ends
Increases towards end
Is same at all points
The device used for producing electric current is called a
Generator
Galvanometer
Ammeter
Motor
At the time of short circuit , the current in the circuit
Reduces substantially
Does not change
Increases heavily
Vary continuously
A wire with green insulation is usually the live wire of an electric supply
True
False
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