According to Keplar's second law of planetary motion, "The areas swept by the radial vector connecting the star (sun) and the planet orbiting it are equal for equal intervals of time
Complete Question
The complete question is shown on the first uploaded image
Answer:
The magnetic field is 
And the direction is 
Explanation:
From the question we are told that
The magnetic field at the center is 
Generally magnetic field is mathematically represented as

We are told that it is equal to 1mT
So

From the first diagram we see that the effect of the current flowing in the circular loop is (i.e the magnetic field generated)

This implies that the effect of a current flowing in the smaller semi-circular loop is (i.e the magnetic field generated)

and for the larger semi-circular loop is

Now a closer look at the second diagram will show us that the current in the semi-circular loop are moving in the opposite direction
So the net magnetic field would be





Recall 
So

Using the Right-hand rule we see that the direction is into the page which is 
Can you give us the options…?
Here Power = Voltage * Current
So, Voltage = Power/Current
Put the values,
V = 240/2
V = 120 V
In short, Your Final Answer would be: 120 Volts
Hope this helps!
Answer:
A) greater
Explanation:
acceleration is calculated by dividing velocity over time..so by calculating, you find acceleration of A is greater than that of B