Can a body have a charge of : 0 . 32 × 10 - 18 C ?

A charge is a quantized property which means it exists in the whole number multiples of 1 . 6 × 10 - 19 C Q = ne n is the number of electrons e is the charge of an electron. Given that body has charge of 0 . 32 × 10 - 18 C Putting the values we get, 0 . 32 × 10 - 18 = n × 1 . 6 × 10 - 19 n = 0 . 32 × 10 - 18 1 . 6 × 10 - 19 = 2 As n = 2 is an integer Hence, a body can have a charge of 0 . 32 × 10 - 18 C .

E M B I B E

Beta Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise (Assertion & Reason)>Q 49

EASY

NEET

IMPORTANT

Earn 100

Assertion: We cannot find electric field from Gauss's law for unsymmetrical charge distribution.

Reason: Gauss's law is not applicable for unsymmetrical charge distribution.

50% studentsanswered this correctly

Important Questions on Electrostatics

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 22 - Electrostatics>BEGINNER'S BOX - 1>Q 1

In a neutral sphere,

5 \times 10^{21}

electrons are present. If

10

percent electrons are removed, then calculate the charge on the sphere.

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 22 - Electrostatics>BEGINNER'S BOX - 1>Q 2

Can a body have a charge of :

0.32 \times 10^{- 18} C

?

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 22 - Electrostatics>BEGINNER'S BOX - 1>Q 3

Can a body have a charge of : 0.64 × 10^-20 C ?

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 22 - Electrostatics>BEGINNER'S BOX - 1>Q 4

Can a body have a charge of : 4.8 × 10^-21 C ?

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 22 - Electrostatics>BEGINNER'S BOX - 1>Q 5

A glass tumbler contains

1

billion amoeba and two sodium ions are there on the body of each amoeba. Find out the charge contained in the glass.

EASY

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 22 - Electrostatics>BEGINNER'S BOX - 1>Q 6

How many electrons should be removed from a conductor so that it acquires a positive charge of

3.5 nC

?

MEDIUM

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 22 - Electrostatics>BEGINNER'S BOX - 1>Q 7

It is now believed that protons and neutrons (which constitute nuclei of ordinary matter) are themselves built out of more elementary units called quarks. A proton and a neutron consist of three quarks each. Two types of quarks, the so called ‘up’ quark (denoted by

u

) of charge

+ (2 / 3) e,

and the ‘down’ quark (denoted by

d

) of charge

(- 1 / 3) e,

together with electrons build up ordinary matter. (Quarks of other types have also been found which give rise to different unusual varieties of matter.) Suggest a possible quark composition of a proton and neutron.

MEDIUM

NEET

IMPORTANT

Beta Question Bank for Medical: Physics>Chapter 22 - Electrostatics>BEGINNER'S BOX - 1>Q 8

Three parallel metallic plates, each area $A$ are kept as shown in the figure and charges $Q_{1}$ , $Q_{2}$ and $Q_{3}$ are given to them. Edge effects are negligible. Calculate the charges on the two outermost surfaces $a$ and $f$ .