10th Class Physics MCQS
The amount of current that causes the loss of muscle control is:
0.1A
2A
0.015A
1A
In electrostatic all charges are in:
Opposite direction
Motion
The same direction
Static state
The emission of electron from the surface of hot metal is called:
Ionization
Conduction
Convection
Thermionic emission
Which device is used to show the change in the value of current or electrical potential as a graph?
Cathode ray tube
Transformer
Oscilloscope
Electron gun
If the distance between the charged bodies is much greater as compared to their sizes then the bodies are considered is:
Negative charge
Positive charge
Point charge
Zero charge
The closed switch in Boolean expression is represented by:
1
0
10
2
The particles emitted from a hot cathode surface are:
Positive ions
Negative ions
Protons
Electrons
Capacitors that are used in resonant circuits that tune radios to particular frequencies, such circuits are called:
Filter circuits
AC circuits
Series circuits
Parallel circuits
Electronics is the study of principles by means of which we control the:
Flow of electrons.
Nuclear fission
Radiations
Fusion reaction
What will be the capacitance of capacitor by joining them in parallel:
No change
Decrease
Increased
Much less
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