Answer:
When mass is greater, the force needed must be greater keeping the acceleration of the wheel chair constant
Explanation:
force is directly proportional to the mass
When the current through a circular loop is 6.0 A, the magnetic field at its center is 2.0 * 10-4 T. What is the radius of the l
1 answer:
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Answer:
(a) 1.5 second
(b) 0.56 m
Explanation:
Pendulum makes 120 oscillations in 3 min that means in 180 seconds
time taken by the pendulum to complete one oscillation is called time period.
(a) So, the time period is 180 / 120 = 1.5 second
T = 1.5 second
Thus, the time period of the pendulum is 1.5 second.
(b) g = 9.8 m/s^2
The formula for the time period is given by
Where, L be the length of pendulum
L = 0.56 m
Thus, the length of the pendulum is 0.56 m .
Answer:
The current is
Explanation:
From the question we are told that
The radius is
The current density is
The distance we are considering is
Generally current density is mathematically represented as
Where A is the cross-sectional area represented as
=>
=>
Now the change in current per unit length is mathematically evaluated as
Now to obtain the current (in A) through the inner section of the wire from the center to r = 0.5R we integrate dI from the 0 (center) to point 0.5R as follows
substituting values