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.Management Sciences
Category: Electrostatics
If three 10 uF capacitors are connected in parallel, the net cararitance is___________?
0
A. 20 uF
B. 30 uE
C. 40 uF
D. 50 uF
If an electrons is allowed to move along the field in a non uniform electric field then it will follow__________________?
A. Spiral path
B. Straight line
C. Curved path
D. Circular path
A 5 μF capacitor has a potential difference across its plates of 200 volts. The charge on the capacitor is____________?
A. 2.5 x 10-8 C
B. 10-5 C
C. 103 C
D. 4 x 103 C
If free space between the plates of a capacitor is replaced by a dielectric_____________?
A. The potential difference remains constant capacittance and energy stored increases
B. The potential difference remains constant capacittance decreases and energy increases
C. The potential difference decreases but both capacitance and energy increase
D. both potential difference and capacitance decrease but energy increases
Photocopier and inject printer are dealt in________________?
A. Electrostatics
B. Charges in motion
C. Capacitors
D. Electric fields
Which of the following materials has the highest value of dielectric constant___________?
A. Glass
B. Vacuum
C. Ceramics
D. Oil
Which of the following capacitors preferred for high frequency circuits ?
A. Air capacitor
B. Electrolytic capacitor
C. Mica capacitor
D. none of the above
The units of volume charge density are___________?
A. Coulomb/meter
B. Coulomb/meter
C. Coulomb/meter
D. Coulomb/meter
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