If you have a light bulb connected to a circuit and you increase the current, what happens to the light bulb and the power (assu
2 answers:
<u>Answer:</u> The correct answer is Option b.
<u>Explanation:</u>
Power is defined as the amount of work done in a given amount of time. It is also defined as the product of voltage and the current.
Mathematically,
where,
P = power
V = voltage
I = current
As, the voltage remains constant, and if we increase the current flowing through the light bulb, power will also increase because current is directly proportional to the power of the light bulb.
Increase in the power will increase the brightness of the bulb and vice-versa.
Hence, the correct answer is Option b.
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Answer:
The side the boy is sitting on will tilt downward.
Explanation:
According to the law of moments when the same force is applied at a greater distance from the pivot then the effect of moment is greater about that point.
<u>Mathematically momentum is given as:</u>
where:
F is the applied force at a distance 'r' acting in a direction perpendicular to the line joining the point of application and the hinge.
- Moment is the rotational effect of the applied force on the body.
<em>When the boy of a heavier mass than the girl was sitting on a balanced see-saw then it is certain that he was closer to the hinge than the girl to balance the turning effect (in case of an unbiased see-saw). When the body moves farther his weight is same but the radial distance from the hinge increases which increases his moment of weight.</em>