MCQ Questions | Class 10 Science Chapter 13 | Magnetic Effects of Electric Current with Answers

MCQ | Class 10 Science Chapter 13 | Magnetic Effects of Electric Current Set B

Check the below NCERT MCQ Questions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current with Answers Pdf free download. MCQ Questions for Class 10 Science with Answers were prepared based on the latest exam pattern. We have Provided Magnetic Effects of Electric Current Class 10 Science MCQs Questions with Answers to help students understand the concept very well.

Objective Question | Science Class 10 Chapter 13

NCERT Solutions Class 10 Science
Book:	National Council of Educational Research and Training (NCERT)
Board:	Central Board of Secondary Education (CBSE)
Class:	10th
Subject:	Science
Chapter:	13
Chapters Name:	Magnetic Effects of Electric Current
Medium:	English

Class 10th Science Book | Objective Type Questions

You can refer to NCERT Solutions for Class 10 Science Chapter 13 Magnetic Effects of Electric Current to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Magnetic Effects of Electric Current | Class 10 Science | NCERT Solutions

Q1.	A positive charge is moving upwards in a magnetic field directed towards north. The particle will be deflected towards
	A. west
	B. north
	C. south
	D. east

Ans: west

Q2.	At the time of short circuit, the current in the circuit
	A. vary continuously
	B. reduced considerably
	C. increases heavily
	D. does not change

Ans: increases heavily

Q3.	The magnetic field near a long straight wire is described by
	A. Straight field lines parallel to the wire.
	B. Straight field lines perpendicular to the wire.
	C. Connective circle centered on the wire.
	D. Radial field lines starting from the wire.

Ans: Connective circle centered on the wire.

Q4.	By which instrument, the presence of magnetic field be determined?
	A. Magnetic Needle
	B. Ammeter
	C. Galvanometer
	D. Voltmeter

Ans: Voltmeter

Q5.	Inside the magnet, the field lines moves
	A. from north to south
	B. from south the north
	C. away from south pole
	D. away from north pole

Ans: from north to south

Q6.	Assertion: It is fatal to touch a live electric wire as the person gets a severe electric shock. In some cases, electric shock can even kill a person. Reason: The electric current passes through the body to the earth forming a circuit and bums the blood.
	A. Both A and R are true and R is the correct explanation of A.
	B. Both A and R are true but R is not the correct explanation of A.
	C. A is true but R is false.
	D. A is false but R is true.

Ans: Both A and R are true and R is the correct explanation of A.

Q7.	Assertion: Strength of an electromagnet depends on the magnitude of current flowing through them. Reason: Electromagnets are majorly used for lifting heavy weights.
	A. Both A and R are true and R is the correct explanation of A.
	B. Both A and R are true but R is not the correct explanation of A.
	C. A is true but R is false.
	D. A is false but R is true.

Ans: Both A and R are true but R is not the correct explanation of A.

Q8.	Which device produces the electric current?
	A. generator
	B. galvanometer
	C. ammeter
	D. motor

Ans: generator

Q9.	The essential difference between A.C. generator and a D.C. generator is that
	A. A.C. generator has an electromagnet while a D.C. generator has permanent magnet.
	B. D.C. generator will generate a higher voltage
	C. A.C. generator will generate a higher voltage
	D. A.C. generator has slip rings while the D.C. generator has commentator.

Ans: A.C. generator has slip rings while the D.C. generator has commentator.

Q10.	Commercial electric motors do not use
	A. an electromagnet to rotate the armature
	B. effectively large number of turns of conducting wire in the current carrying coil
	C. a permanent magnet to rotate the armature
	D. a soft iron core on which the coil is wound

Ans: a permanent magnet to rotate the armature

Q11.	Overloading is due to
	A. Insulation of wire is damaged
	B. fault in the appliances
	C. accidental hike in supply voltage
	D. All of the above

Ans: All of the above

Q12.	Which one of the following correctly describes the magnetic field near a long straight wire?
	A. The field consists of straight lines perpendicular to the wire.
	B. The field consists of straight lines parallel to the wire
	C. The field consists of radial lines originating from the wire
	D. The field consists of concentric circles centered on the wire

Ans: The field consists of concentric circles centered on the wire.

Q13.	The strength of magnetic field inside a long current carrying straight solenoid is
	A. more at the ends than at the centre
	B. minimum in the middle
	C. same at all points
	D. found to increase from one end to the other

Ans: same at all points

Q14.	The main advantage of A.C power transmission over D.C power transmission over’ long distance is
	A. AC transmit without much loss of energy
	B. less insulation problem
	C. less problem of instability
	D. easy transformation.

Ans: AC transmit without much loss of energy

Q15.	The rectangular coil of copper wires is rotated in a magnetic field. The direction of induced current change once in each
	A. one revolution
	B. one fourth revolution
	C. half revolution
	D. two revolutions

Ans: one fourth revolution

Q16.	The condition for the praenomen of electromagnetic induction is that there must be a relative motion between
	A. the galvanometer and magnet
	B. the coil of wire and galvanometer
	C. the coil of wire and magnet
	D. the magnet and galvanometer

Ans: the coil of wire and magnet

Q17.	Direction of rotation of a coil in electric motor is determined by
	A. fleming’s right hand rule
	B. fleming’s left hand rule
	C. faraday law of electromagnetic inductors
	D. None of above

Ans: fleming’s left hand rule

Q18.	Which of the following statement is not correct about the magnetic field?
	A. Magnetic field lines form a continuous closed curve.
	B. Magnetic field line do not interest each other.
	C. Direction of tangent at any point on the magnetic field line curve gives the direction of magnetic field at that point.
	D. Outside the magnet, magnetic field lines go from South to North pole of the magnet.

Ans: Outside the magnet, magnetic field lines go from South to North pole of the magnet.

Q19.	The most important safety device method used for protecting electrical appliances from short circuiting or overloading is
	A. Earthing
	B. use of stabilizer
	C. use of electric meter
	D. fuse