Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 133

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The electric potential $V$ as a function of distance $x$ (in $metre$ ) is given by $V = (5 x^{2} + 10 x - 9) volt$ . The value of the electric field at $x = 1 m$ would be

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Important Questions on Electrostatics

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Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 134

A uniform electric field having a magnitude

E_{0}

, directed along positive x-axis exists. If the electric potential

V

is zero at

x = 0

, then its value at

x = + x

will be

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Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 135

A uniform electric field pointing in positive

X

direction exists in a region. Let

A

be the origin,

B

be the point on the

X

-axis at

x = + 1 cm

and

C

be the point on the

Y

-axis at

y = + 1 cm

. Then the potentials at

A, B

and

C

satisfy-

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Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 136

A

5 coulomb

charge experiences a constant force of

2000 N

when moved between two points separated by a distance of

2 cm

in a uniform electric field. The potential difference between these two points is:

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Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 137

An equipotential surface and an electric line of force:

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Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 138

If an electric dipole is kept in a non-uniform electric field, then it will experience:

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Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 139

The force on a charge situated on the axis of a dipole is

F .

If the charge is shifted to double the distance, the acting force will be -

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Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 140

A dipole of dipole moment

P,

is placed in an electric field

\vec{E}

and is in stable equilibrium. The torque required to rotate the dipole from this position by angle

θ

will be -

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Alpha Question Bank for Medical: Physics>Chapter 22 - Electrostatics>Exercise-1>Q 141

The electric potential at a point due to an electric dipole will be -