- Cp - Cv = R
- Cp = Cv
- Cp is slightly greater than Cv
- Cp is slightly less than Cv
Explanation:
For a solid with a small expansion coefficient, work done in a process will also be small. Thus, the specific heat depends slightly on the process. Therefore, Cp is slightly greater than Cv.
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Identify the paramagnetic substance
|
(a) Iron |
(b) Aluminium |
(c) Nickel |
(d) Hydrogen |
Two resistances of 400 W and 800 W are connected in series with 6 volt battery of negligible internal resistance. A voltmeter of resistance 10,000 W is used to measure the potential difference across 400 W. The error in the measurement of potential difference in volts approximately is
|
(a) 0.01 |
(b) 0.02 |
(c) 0.03 |
(d) 0.05 |
A parallel plate capacitor of area A, plate separation d and capacitance C is filled with three different dielectric materials having dielectric constants and
as shown. If a single dielectric material is to be used to have the same capacitance C in this capacitor, then its dielectric constant k is given by
|
(a) |
(b) |
|
(c) k = |
(d) |
Finger prints are observed by the use of:
Two electric dipoles of moment P and 64 P are placed in opposite direction on a line at a distance of 25 cm. The electric field will be zero at point between the dipoles whose distance from the dipole of moment P is
|
(a) 5 cm |
(b) |
(c) 10 cm |
(d) |
If the magnetic flux is expressed in weber, then magnetic induction can be expressed in
|
(a) Weber/m2 |
(b) Weber/m |
(c) Weber-m |
(d) Weber-m2 |