MCQ
When an object possess electric charge then the object is said to be:
- ACharged.
- BElectrified.
- CBoth a and b.
- DNone.
✓
Answer
- Both a and b.
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
Two wires of same size whose resistivities$\rho_1$ are $\rho_2$ and are joined in series. The equivalent resistivity of the combination will be:
→Assertion : The poles of magnet cannot be separated by breaking into two pieces.
Reason : The magnetic moment will be reduced to half when a magnet is broken into two equal pieces.
|
(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. |
|
(b) If both assertion and reason are true but reason is not the correct explanation of the assertion. |
|
(c) If assertion is true but reason is false. |
|
(d) If the assertion and reason both are false. |
Which of these is unipolar transistor
|
(a) Point contact transistor |
(b) Field effect transistor |
| (c) PNP transistor | (d) None of these |
The magnetic induction in the region between the pole faces of an electromagnet is 0.7 weber/m2. The induced e.m.f. in a straight conductor 10 cm long, perpendicular to B and moving perpendicular both to magnetic induction and its own length with a velocity 2 m/sec is
|
(a) 0.08 V |
(b) 0.14 V |
(c) 0.35 V |
(d) 0.07 V |
Two waves having intensity in the ratio 25 : 4 produce interference. The ratio of the maximum to the minimum intensity is
|
(a) 5 : 2 |
(b) 7 : 3 |
(c) 49 : 9 |
(d) 9 : 49 |
A rectangular loop carrying a current i1, is situated near a long straight wire carrying a steady current i2. The wire is parallel to one of the sides of the loop and is in the plane of the loop as shown in the figure. Then the current loop will:
The measurement of an unknown resistance R is to be carried out using Wheatstones bridge (see Fig. of NCERT Book). Two students perform an experiment in two ways. The first students takes R2 = 10Ω and R1 = 5Ω. The other student takes R2 = 1000Ω and R1 = 500Ω. In the standard arm, both take R3 = 5Ω.
Both find $\text{R}=\frac{\text{R}_2}{\text{R}_1}\text{R}_3=10\Omega$ within errors.
→Both find $\text{R}=\frac{\text{R}_2}{\text{R}_1}\text{R}_3=10\Omega$ within errors.
Binding energy of a nucleus is
|
(a) Energy given to its nucleus during its formation |
|
(b) Total mass of nucleus converted to energy units |
|
(c) Loss of energy from the nucleus during its formation |
|
(d) Total K.E. and P.E. of the nucleons in the nucleus |
An alpha particle moving with an initial velocity (uj)enters a region of uniform magnetic field B=Bk. the de-Broglie wavelength of the alpha particle.
Two light beams superimposed each other constructively this results in: