............... works on the principle that a current carrying conductor placed in a magnetic field experiences a force.

In DC generator, a.......... is fixed on the axle.

In magnet-coil experiment, if both the maghet and coil are stationary, there is deflection in the galvanometer.

Magnitude of the field produced by a current carrying wire at a given point is

If the compass is moved away from the current carrying conductor, ............

Two tungsten bulbs of wattage 110 W and 55 W power work on 220 V potential, how much current will flow in the main conductor?

..........occurs, when more appliances work together in a circuit.

.............. is a sensitive device which works on the principle that a current carrying conductor placed in a magnetic field experiences a force.

The divergence of magnetic field lines near the ends of a current carrying straight solenoid indicate that

An electric iron of 1100 W is operated for 2 hrs daily. What will be the electrical consumption expenses for that in the month of April? (The electric company charges Rs 6 per unit of energy.)

..............occurs, due to a fault in the equipment or if the plastic coating on the 'live' and the 'neutral' wires gives away the two wires come in contact with each other and a large current flows throught it producing heat.

Choose the correct statement.

Which of the following scientist invented the rule of electromagnetic induction?

In ............. appliance, Fleming's left hand rule is not used.

A coil of an alloy ......................... is used in electric heater cooker as a resistor.

Two bulbs are connected in series ina circuit. If the filament of a bulb breaks then, .............

The potential difference between live and neutral wires in domestic circuits is

The magnetic lines of force inside the solenoid are parallel to each other. This indicates that ......... .

....is a device which converts mechanical energy to electrical energy.

The magnetic field produced at the centre of circular coil is directly proportional to

If the current flowing through a straight conductor is decreased, the intensity of the magnetic field

Fuse is made of a substance with

,,,,,,,,,,,,,,,rule gives the direction of magnetic field when current flows through a straight. conducting wire

What is the frequency of direct current?

When electric current is passed through the solenoid, it shows magnetic lines of force similar to a............

When the coil of D.C. generator rotates in the magnetic field,.......... is produced in the coil.

In an electric motor, rectangular coil undergoes rotation because

Which of the statement given below correctly describes the magnetic field near a long, straight current carrying conductor?

............. is used for detecting and measuring electric current.

............ is a device which converts electrical energy to mechanical energy.

If a current of 1 ampere is passed through a wire having resistance 10 Ω for 60 seconds, claculate the heat generated in the wire in joule.

Heat in the resistor is created according to the rule of conservation of........... .

Which of the following device does not use electric motor?

Heating effect of electric current is not observed in ............ .

For a coil carrying current, the magnetic field is stronger .............. .

The electricity bill specifies the uage in .......... .

If an electric conductor is moving in a magnetic field or the magnetic field around a stationary conductor is changing then

How would the strength of magnetic field due to current carrying loop be affected if radius of the loop is reduced to half its original value?

Magnitude of the magnetic field produced at a given point is directly proportional to the magnitude of the

The right hand thumb rule is also called rule

Which of the following is not equivalent to magnitude of 1 unit of energy?

......are used in AC electric generator.

Torch and motorcar engine work on,

According to..........rule electric current is produced in electric generator.

When a copper wire with a resistive coating is wound in a chain of loops (like a spring), it is called as

The displacement of the rod is .............. when the direction of the current through the rod is ............ to the direction of the magnetic field.

In the experiment to study the magnetic field due to electric current flowing through a coil, would be used to find direction of magnetic lines of force..

In right hand thumb rule, a current carrying wire is held in right hand such that

An electric blub is connected to 200 volts. If the current of 0.5 A passes through it, what is the power of the bulb?

The unit of electrical power is .......... .

The induced current will be maximum when

Electromagnetic induction means

Heat energy is being produced in a resistence in a circuit at the rate of 90 W. The current of 3 A is flowing in the circuit. What must be the value of the resistance?

These days when current in the circuit suddenly increases......... switches are used.

In an electric bulb coil of............. metal is used.

Choose the incorrect statement.