Question
The potential difference between points A and B of adjoining figure is
(a) 
|
(b) 
|
(c) |
(d) 2 V |
✓
Answer
(c) 
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
The particles emitted by radioactive decay are deflected by magnetic field. The particles will be
|
(a) Protons and α - particles |
(b) Electrons, protons and α -particles |
|
(c) Electrons, protons and neutrons |
(d) Electrons and α -particles |
The audio signal:
An electron is projected along the axis of a circular conductor carrying some current. Electron will experience force
|
(a) Along the axis |
(b) Perpendicular to the axis |
|
(c) At an angle of 4o with axis |
(d) No force experienced |
Let nr and nb be the number of photons emitted by a red bulb and a blue bulb, respectively, of equal power in a given time:
A 10 
capacitor and a 20 capacitor are connected in series across a 200 V supply line. The charged capacitors are then disconnected from the line and reconnected with their positive plates together and negative plates together and no external voltage is applied. What is the potential difference across each capacitor
|
(a) |
(b) |
(c) 400 V |
(d) 200 V |
Find VAB
|
(a) 10 V |
(b) 20 V |
(c) 30 V |
(d) None of these |
A moving coil galvanometer has a resistance of 50 Ω and gives full scale deflection for 10 mA. How could it be converted into an ammeter with a full scale deflection for 1A
|
(a) 50/99 Ω in series |
(b) 50/99 Ω in parallel |
|
(c) 0.01 Ω in series |
(d) 0.01 Ω in parallel |
The color of the bright fringe near the central white bright fringe obtained in the interference pattern produced by white light will be :
ABC is an equilateral triangle. Charges + q are placed at each corner. The electric intensity at O will be
|
(a) |
(b) |
(c) Zero |
(d) |
If two wires having resistance R and 2R. Both joined in series and in parallel then ratio of heat generated in this situation, applying the same voltage,
|
(a) 2 : 1 |
(b) 1 : 2 |
(c) 2 : 9 |
(d) 9 : 2 |