Related Questions

The permeability of a core material is an indication of the ability of the material to establish a magnetic field.
A True
B False
When a dielectric material is subjected to alternating field, the absorption of energy by the material from the field is given by the imaginary part of polarizability.
A True
B False
The length of a rectangular field F is 3 km greater than the side of a square field M , and the width of field F is 3 km less then the side of field M. If the area of field M is m2 square km, what is the area of field F?
A m2 +6
B 6
C m2 - 6
D m2 +9
When a dielectric is placed in an electric field the field strength
A decreases
B increases
C reduces to zero
D remain unchanged
A farmer has two rectangular fields. The larger field has twice the length and four times the width of the smaller field. If the smaller field has area K, then the area of the largest field is greater than the area of the smaller field by what amount?
A 4K
B 6K
C 7K
D 8K
A farmer has two rectangular fields. The larger field has twice the length and four times the width of the smaller field. If the smaller field has area K, then the area of the larger field is greater than the area of the smaller field by what amount ?
A 2K
B 5 K
C 6K
D 7K
If the number of atoms per unit volume of a monoatomic gas changes, the dielectric constant still remains constant.
A True
B False
Which of the following material has least value of dielectric constant ?
A Ceramics
B Oil
C Glass
D Paper
The dielectric constant of a material is a measure of:
A the amount of voltage it can withstand before breaking down
B how well the material concentrates electrostatic lines of force
C the amount of opposition to the current flow
D how well the material concentrates magnetic lines of force
E None of the above
A farmer has two rectangular fields. The larger has twice the length and four times the width of the smaller field. If the smaller field has area k, then the area of the larger field is greater than the area of the smaller field by what amount?
A 2k
B 6k
C 7k
D 8k

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