A low value of resistor connected in parallel with a dc ammeter is called a:

A switch where the blades are so arranged as to make or break all the poles simultaneously is defined as a:

The basic SI unit of length is:

A fused switch is designed so that fuse links are:

A Device which determines speed whilst flashing at a pre-set frequency is called as:

Reversal of any of the two phases of a 3-phase induction motor results in:

Which of the motor should be always started on load:

Carbon-dioxide and dry chemical powers are used as extinguishers to put-off the electrical fire:

What is the value of the total capacitance of five capacitors rated 10,20,30,40 and 50 micro farad respectively connected in parallel:

Skin effect phenomenon is observed in which of the following:

An electrical bulb of 5 ohms is connected to a voltage source of 120V, calculate the current flowing in the circuit

A motor connecting to 120V supply mains draws 10 amps current with a power factor of 0.75. Calculate the power drawn by the motor:

Electrical transformer core should have the following property:

A non-sinusoidal current and voltage waveforms are generated when supply system is connected to which of the following:

Calculate the equivalent resistance of the two resistors 10 and 20 ohms connected in parallel:

With a 10% slip the rotor speed of six-pole cage induction motor fed from a 50Hz supply is:

A transformer core is laminated to reduce which of the following:

To safeguard a motor against excess current it must be protected by which of the following:

For a material to behave like a good conductor it requires a:

An electric iron draws 10 amps at 120V. How much power is used by the electric iron: