Define the term "volt".

Important Questions on Electricity

EASY

10th CBSE

IMPORTANT

Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3A>Q 1

State the relationship between work, charge and potential difference for an electric circuit.
Calculate the potential difference between two terminals of a battery, if $100 \mathrm{joules}$ of work is required to transfer $20 \mathrm{coulombs}$ of charge from one terminal of battery to the other. 

MEDIUM

10th CBSE

IMPORTANT

Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3A>Q 2

Define the term Coulomb. 

MEDIUM

10th CBSE

IMPORTANT

Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3A>Q 2

State the relationship between electric current, the charge moving through conductor and time of flow. Calculate the charge passing through an electric bulb in $20 \mathrm{minutes}$, if the value of current is $20 \mathrm{mA}$.

MEDIUM

10th CBSE

IMPORTANT

Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3A>Q 3

How is direction of electric current related to direction of flow of electrons in a wire?

EASY

10th CBSE

IMPORTANT

Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3A>Q 3

Calculate the current in a circuit, if $500 \mathrm{C}$ of charge passes through $10 \mathrm{minute}$.

EASY

10th CBSE

IMPORTANT

Core Science Physics>Chapter 3 - Electricity>Practice Problems : 1>Q 1

A wire of resistance $4.5\mathrm{\Omega }$ and length $150 \mathrm{cm}$, has area of cross-section of $0.04 {\mathrm{cm}}^2$. Calculate specific resistance of wire in SI units

EASY

10th CBSE

IMPORTANT

Core Science Physics>Chapter 3 - Electricity>Practice Problems : 1>Q 2

A wire of length $40 \mathrm{cm}$ and area of cross-section $0.1 {\mathrm{mm}}^2$ has a resistance of $0.8\mathrm{\Omega }$. Calculate specific resistance of wire in SI units

MEDIUM

10th CBSE

IMPORTANT

Core Science Physics>Chapter 3 - Electricity>Practice Problems : 1>Q 3

The resistance of a metal wire of length $1 \mathrm{m}$ is $26 \mathrm{\Omega }$ at $20°\mathrm{C}$. If the diameter of the wire is $0.3 \mathrm{mm}$, what will be the resistivity of the metal at that temperature?