The mass of 1 mole of electrons is

Important Questions on Electric Charges and Fields

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CUET (UG)

IMPORTANT

Achieve CUET (UG) Physics Practice Book>Chapter 1 - Electric Charges and Fields>Exercise>Q 19

Assertion: A body can have charge $3.0 \times {10}^{–18} \mathrm{C}$ 

Reason: Charge is quantized.

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CUET (UG)

IMPORTANT

Achieve CUET (UG) Physics Practice Book>Chapter 1 - Electric Charges and Fields>Exercise>Q 21

If an object has a net charge of $-1 \mathrm{C}$, the number of excess electrons possessed by it is,

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CUET (UG)

IMPORTANT

Achieve CUET (UG) Physics Practice Book>Chapter 1 - Electric Charges and Fields>Exercise>Q 22

In nature, the electric charge of any system is always equal to

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CUET (UG)

IMPORTANT

Achieve CUET (UG) Physics Practice Book>Chapter 1 - Electric Charges and Fields>Exercise>Q 24

If an object has a net charge of $-1 \mathrm{C}$, the number of excess electrons possessed by it is?

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IMPORTANT

Achieve CUET (UG) Physics Practice Book>Chapter 1 - Electric Charges and Fields>Exercise>Q 25

If a body has a charge of ${10}^{-12} \mathrm{C}$,

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IMPORTANT

Achieve CUET (UG) Physics Practice Book>Chapter 1 - Electric Charges and Fields>Exercise>Q 26

Under the action of a given coulombic force, the acceleration of an electron is $2.5\times {10}^{22} \mathrm{m}\mathrm{ }{\mathrm{s}}^{-2}$. Then the acceleration of a proton due to the same force is nearly  $\left(m_p=1.67\times {10}^{-27}kg, m_e=9.1\times {10}^{-31}kg\right)$

EASY

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IMPORTANT

Achieve CUET (UG) Physics Practice Book>Chapter 1 - Electric Charges and Fields>Exercise>Q 27

Under the influence of the coulomb field of charge $+Q$, a charge $-q$ is moving around it in an elliptical orbit. Find out the correct statements(s).

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CUET (UG)

IMPORTANT

Achieve CUET (UG) Physics Practice Book>Chapter 1 - Electric Charges and Fields>Exercise>Q 28

Two identical conducting spheres carrying different charges attract each other with a force $F$ when placed in air medium at a distance $d$ apart. The spheres are brought into contact and then taken to their original positions. Now the two spheres repel each other with a force whose magnitude is equal to that of the initial attractive force. The ratio between initial charges on the spheres is,