Options:
- A. Conductors
- B. Insulators
- C. Semi conductors
- D. All of the above
View Answer
C. Semi conductors
Physics
A sensitive galvanometer gives full-scale deflection with 100 mV. If the resistance of the galvanometer is 50? the maximum current that can flow through safely is__________________?
Options:
- A. 2.0 mA
- B. 20 mA
- C. 200 mA
- D. 0.2 mA
View Answer
A. 2.0 mA
Minimum current required to produce a deflection of 1 mm on a scale at a distance of 1 meter is__________________?
Options:
- A. 0.1 A
- B. 1:00 AM
- C. current sensitivity
- D. 1 m A
View Answer
C. current sensitivity
The direction of propagation of an electromagnetic waves is________________?
Options:
- A. Perpendicular to electric field
- B. Perpendicular to both electric and magnetic field
- C. Perpendicular to magnetic field
- D. Parallel to electric and magnetic field
View Answer
B. Perpendicular to both electric and magnetic field
A 10? electric heater is connected to a 220V 50Hz mains supply. What is the peak value of the potential difference across the heater element ?
Options:
- A. 220V
- B. 220/ 2V
- C. 110V
- D. 220 ?2V
View Answer
D. 220 ?2V
Maximum number of rectangular components are_____________?
Options:
- A. 1
- B. 2
- C. 3
- D. 4
View Answer
C. 3
In which quadrant the two rectangular components of a vector have same sign ?
Options:
- A. 1st
- B. 2nd
- C. Both 1st and 3rd
- D. 4th
View Answer
C. Both 1st and 3rd
A body will be in complete equilibrium when it is satisfying______________?
Options:
- A. 1st condition of equilibrium
- B. 2nd condition of equilibrium
- C. Both Ist and 2nd condition of equilibrium
- D. Impossible
View Answer
C. Both Ist and 2nd condition of equilibrium
The bombardment of nitrogen with alpha particles will produce______________?
Options:
- A. Neutron
- B. Proton
- C. Electron
- D. Positron
View Answer
B. Proton
When arrow is released form its bow, its energy is transformed from _____________________?
Options:
- A. heat energy to K.E
- B. elastic P.E to K.E
- C. elemical energy to elastic P.E
- D. K.E to elastic P.E.
View Answer
B. elastic P.E to K.E