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Current Electricity

Current Electricity
The resistance of a parallel circuit consisting of two branches is 12 ohms. If the resistance of one branch is 18 ohms, what is the resistance of the other?

48 Q
36 Q
64 Q
18 Q

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Current Electricity
Sparking occurs when a load is switched off because the circuit has high

Inductance
Capacitance
Resistance
Impedance

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Current Electricity
International ohm is defined in terms of the resistance of

A column of mercury
A cube of copper
The unit length of wire
A cube of carbon

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Current Electricity
Current velocity through a copper conductor is

independent of current strength
the same as propagation velocity of electric energy
nearly 3 x 108 m/s
of the order of a few ^.s/m

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Current Electricity
Which method can be used for absolute measurement of resistances?

Ohm's law method
Releigh method
Lorentz method
Wheastone bridge method

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Current Electricity
The resistance of conductor varies inversely as

Length
Temperature
Resistivity
Area of cross-section

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MORE MCQ ON Current Electricity

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