Class-10,Magnetic Effects of Electric Current

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Name of Student *

Contact No. *

Q1) Which of the following is a vector quantity? *

1 point

velocity

magnetic field

force

velocity, force and magnetic field

Q2) Which of the following organs in the human body where the magnetic field produced is significant? *

1 point

Lungs, brain

Heart, lung

Heart, brain

Liver, heart

Q3) ‘An electric current always produces a magnetic field’ , The above statement is *

1 point

partially false

true

partially true

false

Q4) Which of the following sentences is correct about Overloading? *

1 point

Overloading can occur due to an accidental hike in the supply voltage

Overloading is caused by connecting too many appliances to a single socket

Overloading can occur when the live wire and the neutral wire come into direct contact.

All of these

Q5) Find the incorrect statement *

1 point

A wire with a red insulation is usually the neutral wire of an electric supply.

Field lines emerge from the south pole and merge at north pole.

Magnetic field lines can intersect each other.

All of these

Q6) By right hand thumb rule for current carrying wire the thumb point toward the *

1 point

Direction of momentum

Direction of current

Direction of force

Direction of field lines

Q7) The magnetic field lines inside a long current-carrying solenoid are nearly- *

1 point

Straight

Elliptical

Circular

Parabolic

Q8) What are the factors affecting the strength of magnetic field at a point due to a straight conductor carrying current? *

1 point

Current only

Distance of the point from the wire only

Length of the wire only

Current, length and distance of the wire

Q9) You have a coil and a bar magnet, you can produce an electric current by moving- *

1 point

Neither the magnet nor the coil.

The magnet, but not the coil

Either the magnet or the coil or both

The coil, but not the magnet.

Q10) An electric motor- *

1 point

Provides a constant potential difference

Measures electric current

Converts electrical energy into mechanical energy.

Measures potential difference

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