MCQ
Equipotential surfaces of a single point charge are _____ surfaces centred at the charge.
- AConcentric cylindrical.
- BConcentric circular.
- CConcentric spherical.
- DNone.
✓
Answer
- Concentric spherical.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Louis de -Broglie is credited for his work on:
A photon in motion has a mass
|
(a) c/hv |
(b) h/v |
(c) hv |
(d) |
The diffraction effect can be observed in
If a proton and electron have same de Broglie wavelength, then:
A 4μF conductor is charged to 400 volts and then its plates are joined through a resistance of 1kΩ. The heat produced in the resistance is
|
(a) 0.16 J |
(b) 1.28 J |
(c) 0.64 J |
(d) 0.32 J |
An antenna is a device
|
(a) That converts electromagnetic energy into radio frequency signal |
|
(b) That converts radio frequency signal into electromagnetic energy |
|
(c) That converts guided electromagnetic waves into free space electromagnetic waves and vice-versa |
|
(d) None of these |
A parallel plate capacitor consists of two circular plates each of radius 12cm and separated by 5.0mm. The capacitor is being charged by an external source. The charging current is constant and is equal to 0.15A.The displacement current is:
Sky wave propagation is based on :
Same current is flowing through two parallel conducting wires at a distance $d$ in opposite directions. The intensity of magnetic field at the midpoint between the wires is :
→In order to forward bias a PN junction, the negative terminal of battery is connected to
|
(a) P–side |
(b) Either P–side or N–side |
|
(c) N–side |
(d) None of these |