MEDIUM
10th CBSE
IMPORTANT
Earn 100

Describe the principle and working of a DC motor with the help of a diagram.

Important Questions on Magnetic Effects of Electric Current

EASY
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 2 - Magnetic Effects of Electric Current>Test Your Self Exercise 2>Q 1
What is the value of frequency of the AC supply in India?
MEDIUM
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 2 - Magnetic Effects of Electric Current>Test Your Self Exercise 2>Q 2
State the point of similarity and one point of difference between AC generator and a DC motor.
EASY
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 2 - Magnetic Effects of Electric Current>Test Your Self Exercise 2>Q 3
What is overloading in an electric supply?
EASY
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 2 - Magnetic Effects of Electric Current>Test Your Self Exercise 2>Q 4
Draw a neat labelled diagram of AC generator.
EASY
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 2 - Magnetic Effects of Electric Current>Test Your Self Exercise 2>Q 5
State two factors on which the strength of an induced current depends.
MEDIUM
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 2 - Magnetic Effects of Electric Current>Test Your Self Exercise 2>Q 6
State Faraday’s laws of electromagnetic induction.
EASY
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 2 - Magnetic Effects of Electric Current>Test Your Self Exercise 2>Q 7
Describe domestic electric circuit with labelled diagram.
EASY
10th CBSE
IMPORTANT
Science Part-I NEW ERA PHYSICS Textbook for Class X>Chapter 2 - Magnetic Effects of Electric Current>HIGHER ORDER THINKING SKILL (HOTS)>Q 1

A student performs an experiment to study the magnetic effect of current around a current-carrying straight conductor. He reports that:
(i) the direction of deflection of the North-pole of a compass needle kept at a given point near the conductor remains unaffected even when the terminals of the battery sending current in the wire are interchanged.
(ii) for a given battery, the degree of deflection of an N-pole decreases when the compass is kept at a point farther away from the conductor. Which of the above observations of the student is incorrect and why?