# The unit of electric field strength E is

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The unit of electric field strength E is Volts/metre, nt/coul, joules/coulmetre.

## Related questions

In a parallel plate capacitor of capacitance Co, the electric field is E. If a dielectric slab with dielectric constant = 7 is introduced to fill capacitor completely, the electric field will become (a) 7E (b) E/7 (c) E/3.5 (d) E. Co

Define magnetic field strength and state its unit.

An iron ring of mean circumference 80 cm is uniformly wound with 500 turns of wire and carries 0.8A. Find the magnetic field strength.

The electric break-down strength of materials is dependent on (1) Composition (2) Thickness (3) Moisture content (4) All the above (a) 1 is correct (b) 1 and 2 are correct (c) 2 and 3 are correct (d) only 4 is correct

What is dielectric strength of an insulating material? What is its unit?

Which of these materials requires the least value of magnetic field strength to magnetize it?  a. Nickel b. Silver c. Tungsten d. Sodium chloride

The electric breakdown strength of insulating materials depends on  (A) Nature of applied voltage (B) lmperfection of dielectric material (C) Pressure, temperature and humidity (D) All or these

Which of the following quantity maintains the same direction whether a D.C. machine runs as a generator or as a motor a. Induced e.m.f. b. Armature Current c. Field Current d. Supply Current

A) Watt B) Volts C) Farad D) Ampere

Options: A) WATT B) AMPERE C) VOLTS D) OHM

The unit of electric energy is:

Give the relation between magnetic field strength, magnetic flux density and permeability.

The ability of materials to become polarized under an applied electric field is called _______ A) Ferroelectricity B) Paraelectricity C) Polectricity D) None of these

What is the direction of the induced electric field?

What is the direction of the electric field?

A step voltage E is applied to a series R-L circuit. The rate of change of current is maximum at t = _:  (1) Zero (2) Infinity (3) L/R (4) R/L

Briefly describe the electric field of a static charge.

MOSFET uses the electric field of?

The unit of ∇× H is:  (1) Ampere (2) Ampere/meter (3) Ampere/meter 2 (4) Ampere-meter

An electric motor in which both stator field and rotor rotates with same speed is called?

Is electric potential zero when electric field is zero?

The voltage regulation of an alternator having 0.75 leading p.f. load, no-load induced e.m.f. of 2400V and rated terminal voltage of 3000V is —————————————  A) 20% B) —20% C) 150 D) -26.7

The electric field inside a hollow conducting sphere ________ A) Depends on the diameter of the sphere  B) Varies according to the direction of earth’s magnetic poles C) Is zero  D) None of these

The electric field lines and equipotential lines : (A) are parallel to each other (B) are one and the same (C) cut each other orthogonally (D) can be inclined to each other at any angle

Can the electric field between two positive charges be zero?

The S to Z domain transformation in digital filters which transforms imaginary axis to perimeter of unit circle with no aliasing error is  A) Backward difference integration B) Forward difference integration C) Impulse invariant transformation D) Bilinear integration

A long wire carrying 100 amp is placed in an external magnetic field of 50 gauss. The wire is at right angles to the field.

Electrostatics : Electric Field & Potential

How can a magnetic field be used to generate an electric current?

The dielectric strength of impregnated papers is about   (a) 20 kV/mm (b) 30 kV/mm (c) 15 kV/mm (d) 5 kV/mm

Which of the following test is carried out to ensure the sufficient strength of insulation between two or more conductors to avoid leakage between them ?   (a) Testing of insulation resistance between wiring and earth (b) Testing of insulation resistance between conductors (c) Testing of polarity of single phase switch (d) Testing of earth continuity path

The insulation strength of EHV lines is mainly governed by   (a) Switching overvoltages (b) Lightning overvoltages (c) Power frequency overvoltages (d) Dynamic overvoltages

At atmospheric pressure, the dielectric strength of SF6 is about   (a) 2.5 times of air (b) 2.5 times of oil (c) 2.5 times of vacuum (d) None of the above

What is the sag for a span of 400m, if the ultimate tensile strength of conductor is 6000 kgf, and the weight of conductor is 550 kgf/km? Factor of safety is 2.

The dielectric strength of transformer oil is expected to be?

What does double integration of a unit step function lead to? A) A doublet B) A ramp C) An impulse D) A parabola

An electron having an energy of 20 eV enters a magnetic field of 0.02 webers/sqm at an angle of 30degrees to the field. The time of travel (in nS)of the electron for one revolution is about  A) 1.78 B) 4.21 C) 7.82 D) 10.24

In a network, if the number of holes is n and number of elements is e, then the number of independent mesh equations required to solve the network is (a) e – n + 1 (b) e + n + 1 (c) e + n – 1 (d) e – n – 1