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 A

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.	Assertion: Steel core is used as an electromagnet. Reason: Steel gets permanently magnetised when the current flows through the coil wound around.
	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: A is false but R is true.

Q2.	Magnetic lines of force inside current carrying solenoid are
	A. perpendicular to axis.
	B. along the axis and are parallel to each other.
	C. parallel inside the solenoid and circular at the ends.
	D. circular.

Ans: parallel inside the solenoid and circular at the ends.

Q3.	What should be the core of an electromagnet?
	A. soft iron
	B. hard iron
	C. rusted iron
	D. none of above

Ans: soft iron

Q4.	Who has stated the Right hand Thumb Rule?
	A. Orsted
	B. Fleming
	C. Einstein
	D. Maxwell

Ans: Maxwell

Q5.	The device used for producing electric current is called
	A. generator
	B. galvanometer
	C. ammeter
	D. motor

Ans: generator

Q6.	To convert an AC generator into DC generator
	A. split-ring type commutator must be used
	B. slip rings and brushes must be used
	C. a stronger magnetic field has to be used
	D. a rectangular wire loop has to be used

Ans: split-ring type commutator must be used

Q7.	The most important safety method used for protecting home appliances from short circuiting or overloading is
	A. earthing
	B. use of fuse
	C. use of stabilizers
	D. use of electric meter

Ans: use of fuse

Q8.	A positively-charged particle (alpha-particle) projected towards west is deflected towards north by a magnetic field. The direction of magnetic field is:
	A. towards south
	B.towards east
	C. downward
	D. upward

Ans: the direction of magnetic field is vertically upward.

Q9.	If the current values periodically from zero to a maximum value, back to zero and then reverses its direction, the current is
	A. direct
	B. alternative
	C. pulsating
	D. none of the above

Ans: alternative

Q10.	We can induce the current in a coil by
	A. moving the coil in a magnetic field
	B. by changing the magnetic field around it
	C. by changing the orientation of the coil in the magnetic field
	D. All of above

Ans: moving the coil in a magnetic field

Q11.	Forces acting on a stationery charge of in the magnetic field B is
	A. BQ v
	B. BQ/v
	C. Bv/Q
	D. zero

Ans: zero

Q12.	A current through a horizontal power line flows from south to North direction. The direction of magnetic field line 0.5m above it is
	A. North
	B. South
	C. West
	D. East

Ans: North

Q13.	A D.C generator works on the principle of
	A. ohnis law
	B. Joule’s law of heating
	C. faraday’s law of electromagnetic induction.
	D. none of the above

Ans: faraday’s law of electromagnetic induction.

Q14.	A soft iron bar is introduced inside the current carrying solenoid. The magnetic field inside the solenoid
	A. will decrease
	B. will remains same
	C. will increase
	D. will become zero

Ans: will increase

Q15.	In the domestic electric circuits, the red coloured insulated copper wire is called
	A. Neutral wire
	B. Fuse wire
	C. Live wire
	D. Earthing wire

Ans: Live wire

Q16.	When current is parallel to magnetic field, then force experience by the current carrying conductor placed in uniform magnetic field is
	A. Twice to that when angle is 60°
	B. Thrice to that when angle is 60°
	C. zero
	D. infinite

Ans: Twice to that when angle is 60°

Q17.	The factors on which one magnetic field strength produced by current carrying solenoids depends are
	A. Magnitude of current
	B. Number of turns
	C. Nature of core material
	D. All of the above

Ans: All of the above

Q18.	In electric motor, to make the coil rotating continuously in the same direction, current is reversed in the coil after every half rotation by a device called
	A. carbon brush
	B. commutator
	C. slip ring
	D. armature

Ans: commutator

Q19.	A positively charged particle say an alpha particle projected towards west is deflected toward north by a magnetic field. The direction of the magnetic field is
	A. Upward
	B. downward
	C. towards south
	D. towards east.