Question
Effective resistance between A and B is
|
(a) 15 W |
(b) 5 W |
(c) |
(d) 20 W |
✓
Answer
(b) 5 W
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
Which of the following is an electromagnetic wave?
Two files lines can ____.
An electron is moving towards x-axis. An electric field is along y-direction then path of electron is
|
(a) Circular |
(b) Elliptical |
(c) Parabola |
(d) None of these |
In the circuit shown below, calculate the current flowing through 20V cell.
A large cylindrical tank has a hole of area A at its bottom. Water is poured in the tank by a tube of equal cross-sectional area A ejecting water at the speed v.
→- The water level in the tank will keep on rising.
- No water can be stored in the tank.
- The water level will rise to a height $\frac{\text{v}^2}{2\text{g}}$ and then stop.
- The water level will oscillate.
Four capacitors are connected as shown in the equivalent capacitance between the points P and Q is
|
(a) 4 μF |
(b) |
(c) |
(d) |
Which of the following four graphs may best represent the current-deflection relation in a tangent galvanometer?
When NPN transistor is used as an amplifier
|
(a) Electrons move from base to collector |
|
(b) Holes move from emitter to base |
|
(c) Electrons move from collector to base |
|
(d) Holes move from base to emitter |
The magnetic field due to a current carrying circular loop of radius 3 cm at a point on the axis at a distance of 4 cm from the centre is 54 mT. What will be its value at the centre of the loop
|
(a) 250 m T |
(b) 150 m T |
(c) 125 m T |
(d) 75 m T |
The reason of colour in thin film is :