Question

Which of the adjoining graphs represents ohmic resistance

(a)

(b)

(c)

(d)

Answer

(a)

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

When light rays are incident on a prism at an angle of 45°, the minimum deviation is obtained. If refractive index of the material of prism is , then the angle of prism will be

(a) 30°

(b) 40°

(c) 50°

(d) 60°

Nature of electromagnetic waves is :

A parallel plate capacitor has a capacity C. The separation between the plates is doubled and a dielectric medium is introduced between the plates. If the capacity now becomes 2C, the dielectric constant of the medium is

(a) 2 

(b) 1

(c) 4  

(d) 8

An equi-convex crown glass lens has a focal length 20 cm for violet rays. Here $\mu_{ v }=1.5 \& \mu_{ r }=1.47$. Its focal length for red rays is

An oscillator circuit consists of an inductance of 0.5mH and a capacitor of 20 μF. The resonant frequency of the circuit is nearly

(a) 15.92 Hz

(b) 159.2 Hz

(c) 1592 Hz

(d) 15910 Hz

In an experiment, a graph was plotted of the potential difference V between the terminals of a cell against the circuit current i by varying load rheostat. Internal conductance of the cell is given by

(a) xy

(b)  

(c)  

(d) (x – y)

The cations and anions are arranged in alternate form in
The binding energy per nucleon for the parent nucleus is $E _1$ and for the decayed nuclei is $E _2$. Then :

Three charges 4q, Q  and q are in a straight line in the position of 0, l/2 and l  respectively. The resultant force on q will be zero, if Q =

(a) – q

(b) -2q

(c)     

(d) 4q

X-rays are not used for radar purpose because

(a) They are not reflected by the target

(b) They are not electromagnetic waves

(c) They are completely absorbed by the air

(d) They sometimes damage the target