Electric Circuits Objective Questions – Set 10

If the dielectric of a capacitor is replaced by conducting material

Two resistor are said to be connected in parallel when

Three 60 W bulbs are in parallel across the 60 V power line. If one bulb burns open

Internal heating of a capacitor is usually attributed to

Which resistor will be physically larger in size ?

In RLC parallel circuit circuit current through inductor is more than current through capacitor. Then what is the power factor of the circuit?

A capacitor

The capacitance of a parallel plate capacitor can be varied by

Which quantity consists of a unit 1KWh ?

Which of following materials has the least resistivity ?

Internal resistance of ideal voltage source is

The energy stored by a capacitor is given by

Which of the following are typical resistance and power-dissipation values for a carbon- composition resistor ?

If C be the capacitance, V be the potential difference and I be the current, then I / CV will have the unit of

When current flows through heater coil it glows but supply wiring does not glow because

Which of the following carbon coded resistor has value of 10 kohm with 20% tolerance ?

A current of 1 mA flows through a 1 Mohm, 2 W carbon resistor. The power dissipated as heat in the resistor will be

A variable capacitance is one whose capacitance

For making a capacitor, it is better to select a dielectric having

A 3 Ω resistor having 2 A current will dissipate the power of

Two resistances R₁ and R₂ are connected in series across the voltage source where R₁ > R₂. The largest drop will be across

The electrical resistance of human body is around

Three identical resistors are first connected in parallel and then in series. The resultant resistance of the first combination to the second will be

The maximum current rating for a 10 k Ω, 0.5 W resistor is

When resistance element of a heater fuses and then we reconnect it after removing a portion of it, the power of heater will

The power dissipated in a pure capacitor is

Which of the following quantities remain the same in all parts of a parallel circuit

The filament of an electric bulb is made of

A resistance having rating 10 ohms, 10 W is likely to be a

In a capacitor, the electrcal energy is stored in