The resistance of conductor is directly proportional to length and resistivity.
Answer: Option B
<u>Explanation: </u>
Resistance is present in an electrical object or rather introduced to counter check the flow of the current. It is similar to the mechanical friction in the conceptualization of its existence and effect.
It is directly proportional to the length of the electric circuit. It is being measured and noted in ohm. The formula for resistance is –
Where,
R - the Resistance of the wire,
- the resistivity of the wire
L - The length of the wire
A - the area of cross section of the wire
The moment of inertia of the flywheel is 2.63 kg-
It is given that,
The maximum energy stored on the flywheel is given as
E=3.7MJ= 3.7× J
Angular velocity of the flywheel is 16000 = 1675.51
So to find the moment of inertia of the flywheel. The energy of a flywheel in rotational kinematics is given by :
E =
By rearranging the equation:
I =
I = 2.63 kg-
Thus the moment of inertia of the flywheel is 2.63 kg-.
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