1 coulomb is equal to:
1.3 × 109 e.s.u.
2.13 × 109 e.s.u
3.3 × 1010 e.s.u
4.13 × 1010 e.s.u.
Posted Date:-2021-12-15 06:01:37
1 V equals to:
1.1 J
2.1 JC-1
3.1 CJ-1
4.1 JC
Posted Date:-2021-12-15 08:29:35
1 V m-1 equals to:
1.1 N
2.1 Mm-1
3.1 NC-1
4.1 J-1
Posted Date:-2021-12-15 08:30:38
A parrot comes and sits on a bare high power line. It will:
1. experience a mild shock ‘
2.experience a strong shock
3.get killed instantaneously
4.not be affected practically
Posted Date:-2021-12-15 07:36:10
A soap bubble is given a negative charge, then its radius:
1.increases
2.decreases
3.Remains unchanged
4.may increase or decrease
Posted Date:-2021-12-15 07:41:00
A soap bubble is given a negative charge, then its radius:
1.increases
2.decreases
3.Remains unchanged
4.may increase or decrease
Posted Date:-2021-12-15 07:41:13
An electron is sent in an electric field of magnitude 9.1 × 106NC-1. The acceleration produced in it is :
1.1.6 ms-2
2.1.6 × 1018ms-2
3.0.8 × 1018 ms-2
4.0.8 × 1018 ms-2
Posted Date:-2021-12-15 07:43:37
Corona discharge takes place:
1.at the surface of a conductor
2.near the sharp points of a conductor
3.outside the conductor
4.at the centre of the conductor
Posted Date:-2021-12-15 08:17:29
Each of the two point charges are doubled and their distance is halved. Force of interaction becomes p times, w here p is :
1.1
2.4
3.116
4.16
Posted Date:-2021-12-15 06:02:28
Electric field in a cavity of metal:
1.depends upon the surroundings
2.depends upon the size of cavity
3. is always zero
4.is not necessarily zero
Posted Date:-2021-12-15 05:59:58
If an electric dipole is kept in a uniform electric field then resultant electric force on it is :
1.always zero
2.never zero
3.depend upon capacity of dipole
4.None
Posted Date:-2021-12-15 05:56:15
If sphere of bad conductor is given charge then it is distributed on:
1.surface
2.inside the surface
3.only inside the surface
4.None
Posted Date:-2021-12-15 05:59:03
If two conducting sphere are connected after charging separately then
1.Electrostatic energy sphere energy will remain conserved
2.Electrostatic energy charges remains conserved
3.Electrostatic energy energy and charge remains conserved
4.None
Posted Date:-2021-12-15 07:39:53
In non-uniform electric field, electric dipole experiences:
1.torque only
2.torque as well as net force
3.force only
4.None of the above
Posted Date:-2021-12-15 07:42:03
oulomb’s law in vector form can be written as F⃗ = (14πεn) (q1q2r2)r⃗ where ε0 is the permitivity of free space. The SI units of ε0 will be:
1.N-1m-2C-2
2.Nm-2C2 (
3. N-1m-2C9
4.Nm-2C2
Posted Date:-2021-12-15 06:03:31
Quantisation of charge implies:
1.Charge does not exist
2.Charge exists on particles
3.There is a minimum permissible magnitude of charge
4.Charge can’t be created
Posted Date:-2021-12-15 08:24:38
The belt of a Vande Graaf generator gets charge by :
1.corona discharge (b) (c)
2.induction
3.electrification
4.None of the these
Posted Date:-2021-12-15 08:23:14
The conservation of electric charge implies that:
1.Charge can’t be created
2.Charge can’t be destroyed
3.The number of charged particle in the universe is constant
4.Simultaneous creation of equal and opposite charges is permissible
Posted Date:-2021-12-15 08:26:01
The dielectric constant of a metal is:
1. 0
2.1
3.∞
4.-1
Posted Date:-2021-12-15 06:00:48
The dimensional representation of cu will be :
1.[MLT4 A2]
2.[M-1L-3T4A2]
3.[ML-2T ]
4.None of the above
Posted Date:-2021-12-15 07:34:37
The graph drawn between V are r for a non-conducting charged solid sphere of radius R for r < R will be :
1.straight line
2.parabola
3.hyperbola
4.None of the above
Posted Date:-2021-12-15 08:15:22
The minimum amount of charge observed so far is:
1.1 C
2.4.8 × 1-13 C
3.1.6 × 10-19 C
4.1.6 × 1019 C
Posted Date:-2021-12-15 08:31:33
The number of electron-taken out from a body to produce 1 coulomb of charge will be :
1.6.25 × 1018
2.625 × 1018
3.6.023 × 1023
4.None
Posted Date:-2021-12-15 05:57:03
The number of electrons contained in one coulomb of charge is:
1.6.25 × 1018
2.6.25 × 1017
3.6.25 × 1019
4.1.6 × 1019
Posted Date:-2021-12-15 08:27:21
The SI units of electric dipole moment are:
1.C
2. Cm-1
3.Cm
4.Nm-1
Posted Date:-2021-12-15 07:38:53
The unit of intensity of electric field is :
1.metre/volt
2.Joule/newton
3.Coulomb/newton
4.Newton/coulomb
Posted Date:-2021-12-15 08:28:29
The unit of intensity of electric field is :
1.metre/volt
2.Joule/newton
3.Coulomb/newton
4.Newton/coulomb
Posted Date:-2021-12-15 08:28:30
The work done in rotating an electric dipole in an electric field:
1.W = ME (1 – cos θ)
2.W = ME tan θ
3.W = ME sec θ
4.None
Posted Date:-2021-12-15 05:57:54
Three charges + 3q + q and Q are placed on a st. line with equal separation. In order to maket the net force on q to be zero, the value of Q will be :
1.+3q
2. +2q
3.-3q
4.-4q
Posted Date:-2021-12-15 05:55:24
Two point charges +8q and -2q are located at ,v = O and ,v = L respectively. The location of a point on the .v-axis at which the net electric field due to these two point charges b is zero :
1.4L
2.8L
3.L/4
4.2L
Posted Date:-2021-12-15 07:45:25
When placed in a uniform field, a dipole experiences:
1.a net force
2.a torque
3.both a net force and torque
4.neither a net force nor a torque
Posted Date:-2021-12-15 07:35:19
Which one of the following is the unit of electric field?
1.Coulomb
2.Newton
3.Volt
4.N/C
Posted Date:-2021-12-15 05:54:02