Write three requirements of a good cell.

Important Questions on Electricity and Magnetism

MEDIUM

9th ICSE

IMPORTANT

Together With Physics Class 9>Chapter 8 - Electricity and Magnetism>PRACTICE QUESTIONS>Q 3

What do you mean by the magnetic elements of the earth's magnetic field? Name them.

MEDIUM

9th ICSE

IMPORTANT

Together With Physics Class 9>Chapter 8 - Electricity and Magnetism>PRACTICE QUESTIONS>Q 4

Define the conventional and electronic flow of current.

EASY

9th ICSE

IMPORTANT

Together With Physics Class 9>Chapter 8 - Electricity and Magnetism>PRACTICE QUESTIONS>Q 20

Define the term magnetic axis.

EASY

9th ICSE

IMPORTANT

Together With Physics Class 9>Chapter 8 - Electricity and Magnetism>Self Evaluation Test>Q 13

When the starter motor of a car is switched on for $1.7 \mathrm{s}$, a charge of $34 \mathrm{C}$ passes through the coil of the motor. Calculate the current in ampere through the motor.

MEDIUM

9th ICSE

IMPORTANT

Together With Physics Class 9>Chapter 8 - Electricity and Magnetism>Self Evaluation Test>Q 14

Define magnetic pole and magnetic equator. Also state the nature of magnetic field lines at magnetic poles and magnetic equator.

EASY

9th ICSE

IMPORTANT

Together With Physics Class 9>Chapter 8 - Electricity and Magnetism>Self Evaluation Test>Q 15

A charge of $0.5 \mathrm{C}$ passes through a cross-section of a conductor in $5 \mathrm{s}$ .  $\mathrm{A}\times {10}^{15}$ electrons will flow in the given time interval, if the charge on one electron is $1.6\times {10}^{-19} \mathrm{C}$. Magnitude of $\mathrm{A}$ is 

EASY

9th ICSE

IMPORTANT

Together With Physics Class 9>Chapter 8 - Electricity and Magnetism>Self Evaluation Test>Q 15

A current of $0.5 \mathrm{C}$ passes through a cross-section of a conductor in $5 \mathrm{s}$. Magnitude of current (in ampere) through the conductor is