If Cv denotes molar speak heat at constant volume and ΔT is the change in temperature then CvΔT gives:
- Pressure
- Volume
- Internal energy
- Entropy
A circuit that converts pulsating voltage of the rectifier to smooth voltage is known as
- Filter
- Generator
- Choke
- Transformer
Two point charges, each of magnitude q are separated by a distance 2d. At a point mid-way between
- E=0, V≠0
- E≠0, V≠0
- E≠0, V=0
- E=0, V=0
In British Engineering system, 1 Horse Power is:
- 550 ft Pound/sec
- 746 ft Pound/sec
- 550 kilowatt hour
- 550 watt
Electric field lines are
- Solid lines
- Actual lines
- Imaginary lines
- Always curve lines
High frequency vibration is of:
- 1000 Hz
- 10 kHz
- 1 KHz
- 0.1 MHz
The magnetic flux through an area A in a uniform magnetic field B is given as
- BA sinθ
- BA tanθ
- B.A
- BA Cos2θ
The angle subtended at the center of a circle by an arc equal to 1/60th of a degree is called
- One minute
- One second
- One steradian
- One radian
What is the SI unit of conductivity
- selmen m
- mho – m-1
- Ohm^-1 – m
- mho-1 – m-1
The longest wavelength of Lyman series Is equal to
- 9 / RH
- 144 /7RH
- 4/3RH
- 1/RH
