Electric current is considered to be the flow of _________.
Positive charges
Concept:
Electric Current (I) = Electric Charge (Q) / Time (t)
Explanation:
When a number of resistors are connected in series in a circuit, the value of current ________ across each resistor.
The resistance of a conductor is inversely proportional to:
If a body takes ‘t’ seconds to go once around the circular path of radius ‘r’, the velocity ‘v’ is given by
A current I flows through a resistor. A source maintains a potential difference of V across the resistor. The energy supplied by the source in time t is:
If the resistance of a conductor is doubled, the current gets halved. This is because:
In a Class 2 lever, effort and load move in the:
Two identical resistors, each of 10 Ω, are connected in parallel. This combination, in turn, is connected to a third resistor in series of 10 Ω. The equivalent resistance of the combination is ________.
If the power of a corrective lens in +2.0D, then it is a:
Insulators have resistivity of the order of ________.
A curved mirror where the reflecting surface is curved inwards is called a ________.
What special name is given to the frictional force exerted by a fluid?
______ is used in periscope.
Zero degree centigrade is equal to what degree Fahrenheit?
A. 100°F
B. 30°F
C. 34°F
D. 32°F
Keeping voltage constant, if more lamps are put into a series circuit, the overall current in the circuit:
A. Increases
B. Decreases
C. Remains the same
D. Becomes infinite
Excessive curvature of eye lens leads to _______