The filament of an electric bulb is made of______________?
The filament of an electric bulb is made of______________?
A. carbon
B. aluminium
C. tungsten
D. nickel
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A 3 Q resistor having 2 A current will dissipate the power of_______________?
A 3 Q resistor having 2 A current will dissipate the power of_______________?A. 2 watts
B. 4 watts
C. 6 watts
D. 12 wattsThe condition for the validity under Ohm’s law is that_______________?
The condition for the validity under Ohm’s law is that_______________?
A. resistance must be uniform
B. current should be proportional to the size of the resistance
C. resistance must be wire wound type
D. temperature at positive end should be more than the temperature at negative endWhich of the following statement is true________________?
Which of the following statement is true________________?
A. A galvanometer with low resistance in parallel is a voltmeter
B. A galvanometer with high resistance in parallel is a voltmeter
C. A galvanometer with low resistance in series is an ammeter
D. A galvanometer with high resistance in series is an ammeterIf a parallel circuit is opened in the main line, the current_______________?
If a parallel circuit is opened in the main line, the current_______________?
A. increases in the branch of the lowest resistance
B. increases in each branch
C. is zero in all branches
D. is zero in the highest resistive branchThe insulation on a current carrying conductor is provided__________?
The insulation on a current carrying conductor is provided__________?
A. to prevent leakage of current
B. to prevent shock
C. both of above factors
D. none of above factorsTemperature co-efficient of resistance is expressed in terms of___________?
Temperature co-efficient of resistance is expressed in terms of___________?
A. ohms/°C
B. mhos/ohm°C
C. ohms/ohm°C
D. mhos/°C