Question

What is the equivalent resistance between A and B

(a)  

(b)  

(c)  

(d) 2R

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.

Start Generating Free

Similar questions

In nuclear reactions, we have the conservation of

(a) Mass only

(b) Energy only

(c) Momentum only

(d) Mass, energy and momentum

If half-life of a substance is 3.8 days and its quantity is 10.38 gm. Then substance quantity remaining left after 19 days will be

(a) 0.151 gm

(b) 0.32 gm

(c) 1.51 gm

(d) 0.16 gm

Which of the following figure is correct on the basis of Huygens principle for refraction of a plane wave by a thin prism?

Light is incident normally on a diffraction grating through which the first order diffraction is seen at 32o. The second order diffraction will be seen at

(a) 48o

(b) 64o

(c) 80o

 

(d) There is no second order diffraction in this case

The approximate wavelength of  a photon of energy 2.48 eV is

(a) 500 Å

(b) 5000 Å

(c) 2000 Å

(d) 1000 Å

The two metallic plates of radius r are placed at a distance d apart and its capacity is C. If a plate of radius r/2 and thickness d  of dielectric constant 6 is placed between the plates of the condenser, then its capacity will be

(a) 7C/2

(b) 3C/7

(c) 7C/3

(d) 9C/4

In the circuit shown in figure the maximum output voltage V0 is

(a) 0 V

(b) 5 V

(c) 10 V

(d)  

Each plate of a parallel plate capacitor has a charge q on it. The capacitor is now connected to a batter. Now:
  1. The facing surfaces of the capacitor have equal and opposite charges.
  2. The two plates of the capacitor have equal and opposite charges.
  3. The battery supplies equal and opposite charges to the two plates.
  4. The outer surfaces of the plates have equal charges.
The susceptibility of a diamagnetic substance is:

The e.m.f. of a standard cell balances across 150 cm length of a wire of potentiometer. When a resistance of 2 Ω is connected as a shunt with the cell, the balance point is obtained at 100 cm. The internal resistance of the cell is

(a) 0.1 Ω

(b) 1 Ω

(c) 2 Ω

(d) 0.5 Ω