Explanation:
Given that,
Initial speed of a car, u = 12 m/s
Aceleration, a = -1.6 m/s²
(a) The displacement of car after 6 seconds is :
(b) The displacement of the car after 9 seconds is :
Hence, this is the required solution.
The circuit below shows some of the circuitry in a small toy robot. When the circuit is on the robot moves its arms, the motor,
and blink the light on its head, the lightbulb.
A. How much current Is in the circuit when these things are happening? Hint defined the total resistance of the circuit add the two resistances together.
B. What is the voltage between point P and the battery?
A. How much current Is in the circuit when these things are happening? Hint defined the total resistance of the circuit add the two resistances together.
B. What is the voltage between point P and the battery?
1 answer:
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Answer:
The value of current through the rod becomes half
Explanation:
As per Ohm's law we know that the current through a resistor is given as
here we know that
here we know that the length of the cylinder is L and area is A so the value of current through the rod is given as
now we have change the length of the conductor to twice of initial value and rest all parameters will remain the same
so we will have
now from above two equations we have
so new current will become