# A dielectric material is placed in between the plates of a capacitor, it

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A dielectric material is placed in between the plates of a capacitor, it Increases the capacitance.

## Related questions

What happens to the capacitance if mica is inserted between the plates of an air capacitor? A) The capacitance increases B) The capacitance decreases C) The capacitance remains the same D) The capacitance becomes zero

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

Horizontal deflection plates of CRO are placed generally   (a) Horizontal (b) Vertical (c) Diagonal (d) (a) or (b)

The property of a material which opposes the creation of magnetic flux in it is known as?

Dielectric loss in a capacitor is best measured by (A) Wien Bridge (B) Schering Bridge (C) Anderson Bridge (D) Heaviside-Campbell Equal Ratio Bridge

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.

A conductor of length L has current I passing through it, when it is placed parallel to a magnetic field. The force experienced by the conductor will be

A dielectric material is said to be linear if the electric flux density varies (A) non-linearly with electric field (B) linearly with electric field (C) linearly with the permittivity (D) non-linearly with electric potential

With the help of which bridge are the capacitance and dielectric loss of a capacitor generally measured ?

Consider a cube of material of sides 1 cm with a resistance of 0.003 Ω between its opposite faces. What is the resistance if the same volume of the material is drawn into a length of 50 cm with a uniform cross – section? A) 0.003 Ω B) 0.15 Ω C) 7.5 Ω D) None of these

What is the role of a capacitor in a circuit?

What is the difference between an insulator and a dielectric?

A switch is connected in between a 12V battery and an uncharged capacitor and a 1 K Ohm resistor. At the time instant when the switch is closed, the voltage across the capacitor is :  A) 6V B) 12v C) 0V D) 24V

Define breakdown voltage and dielectric strength of a capacitor.

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

If the distance of screen from a CRT to center of deflection plates is 15 cm, the length of deflection plates is 2 cm, the distance between the plates is 1 cm and accelerating voltage is 500 V, deflection sensitivity is   (a) 33.2 V/cm (b) 0.03 cm/V (c) 66.4 V/cm (d) 0.015 cm/V

Power factor of an inductive circuit is usually improved by connecting capacitor to it in?

In a transformer, low voltage winding is placed near the core in case of concentric windings so as to  1. Reduce the leakage flux 2. Reduce the insulation requirement 3. Reduce the risk of voltage shock in case of insulation breakdown 4. Reduce the core loss   From these, the correct answer is (a) 1, 2, 3 (b) 2, 3, 4 (c) 1, 2, 3, 4 (d) 2, 3

In a d.c. machine the force on a conductor placed on the periphery of the conductor is (a) directly proportional to parallel path (b) inversely proportional to the parallel path (c) inversely proportional to the length of the conductor (d) none of these

A coil of wire is placed in a changing magnetic field. If the number of turns in the coil is decreased, the voltage induced across the coil will: A. increase B. decrease C. remain constant D. be excessive

When the temperature of a ferromagnetic material exceeds the Curie temperature, it behaves similar to a

The reluctance offered by a magnetic material is highest when it is (a) Diamagnetic (b) Paramagnetic (c) Ferromagnetic (d) None of these

Define dielectric strength for a capacitor.

The emf induced in a coil is 1 volt when current in it changes from 0 to 100 mA in time 10mS. Its inductance (in mH) value is  A) 10 B) 50 C) 100 D) 1000

What is the basic function of a capacitor?

What is the direction of flow when charging a capacitor?

What is the symbol of a capacitor?

If a current of 500 mA charges a dielectric for 2 s, how much charge is stored in the dielectric?

If a current of 1.5 A charges a dielectric for 5 s, how much charge is stored in the dielectric?

A cube of material of side 1 cm has a resistance of 0.002 ohm between its opposite faces. If the same volume of the material has a length of 8 cm and a uniform cross-section, the resistance of this length will be

A capacitor and coil in parallel is called

If a ferromagnetic material is heated upto Curie temperature, it becomes (a) Permanent magnet (b) Anti-ferromagnetic material (c) Diamagnetic material (d) Paramagnetic material

In a fullwave rectifier circuit with centre tap transformer, if voltage between one end of secondary winding and centre tap is 300V peak, then PIV (peak inverse voltage) is a. 300 V b. 150 V c. 600 V 5 d. 900 V

In a Hartley oscillator, L1 = 0.1 mH, L2 = 10 µH and mutual inductance between coils equals 20 µH. The voltage gain needed for sustained oscillations should be (a) 2.37 (b) 0.1 (c) 11.54 (d) 9.09

what is the difference between capacitor and battery ?

For an insulating material, dielectric strength and dielectric loss should be respectively   (A) high and high (B) low and high (C) high and low (D) low and low.