Options:
- A. 120 J
- B. 60 J
- C. 30 J
- D. 0.02 J
View Answer
A. 120 J
Physics
The tides raise the mater in the see roughly in a day___________________?
Options:
- A. once
- B. twice
- C. four time
- D. eight time
View Answer
B. twice
Which one of the following physical quantities does not have the dimensions of force per unit area ?
Options:
- A. Stress
- B. Strain
- C. Youngs modulus
- D. Pressure
View Answer
B. Strain
With increase in temperature the electrical conductivity of intrinsic semi conductor___________________?
Options:
- A. Decreases
- B. Increases
- C. Remains same
- D. First increases then decreases
View Answer
B. Increases
The electrons in conduction band are free to___________________?
Options:
- A. Transport vibrations
- B. Transport signals
- C. Transport charge
- D. Transport impulses
View Answer
C. Transport charge
Which one of the following is not an electromechanical instrument ?
Options:
- A. galvanometer
- B. voltmeter
- C. ammeter
- D. AC transformer and DC generator
View Answer
D. AC transformer and DC generator
The deflection for 50 division of galvanometer is decreased to 25 divisions by shunt resistance of 12?. Galvanometer resistance is_____________?
Options:
- A. 18?
- B. 30?
- C. 24?
- D. 12?
View Answer
D. 12?
An alternating current of the r.m.s value of 4.0 A and frequency 50Hz flows in a circuit containing a 10? resistor. The peak current is then ?
Options:
- A. 20A
- B. 20.66A
- C. 6.66A
- D. 5.66A
View Answer
D. 5.66A
What is the self-inductance of a coil in which an induced emf of 2V is set up when the current changes at the rate of 4 As-1 ?
Options:
- A. 0.5 mH
- B. 0.5H
- C. 2.0H
- D. 8.0H
View Answer
B. 0.5H
Unit vector n^ is along______________?
Options:
- A. X-axis
- B. Normal on a surface
- C. Y-axis
- D. Z-axis
View Answer
B. Normal on a surface