What causes charges to move in a circuit?
2 answers:
Answer:
a) Voltage
Explanation:
As we know that voltage difference and electric field is related as
now when we apply voltage across the length of any conductor then it will induce electric field inside the conductor.
Due to this electric field we can say that the free charge inside the conductor will experience electric force on it
Due to this electric force free charge will start moving inside the conductor and it will form electric current
So here correct answer for electric current will be
a) Voltage
You might be interested in
Answer:
Question 1)
a) The speed of the drums is increased from 2 ft/s to 4 ft/s in 4 s. From the below kinematic equations the acceleration of the drums can be determined.
This is the linear acceleration of the drums. Since the tape does not slip on the drums, by the rule of rolling without slipping,
where α is the angular acceleration.
In order to continue this question, the radius of the drums should be given.
Let us denote the radius of the drums as R, the angular acceleration of drum B is
α = 0.5/R.
b) The distance travelled by the drums can be found by the following kinematics formula:
One revolution is equal to the circumference of the drum. So, total number of revolutions is
Question 2)
a) In a rocket propulsion question, the acceleration of the rocket can be found by the following formula:
b)