Answer:
Magnetic field, B = 0.199 T
Explanation:
It is given that,
Radius of circular loop, r = 11.7 cm = 0.117 m
Magnetic flux through the loop, 
The magnetic flux linked through the loop is :


Here, 

or


B = 0.199 T
So, the strength of the magnetic field is 0.199 T. Hence, this is the required solution.
Answer:
834 milli-volts
Explanation:
Data provided in the question:
Current = 139 milliamps = 139 × 10⁻³ A
resistance = 6 ohms
Now,
The relation between the current , resistance and voltage is given as:
Voltage = Current × Resistance
on substituting the respective values, we get
Voltage = 139 × 10⁻³ × 6
or
Voltage = 834 milli-volts
If the forces on an object are balanced (or if there are no forces acting on it), this is what happens:
a stationary object stays still
a moving object continues to move at the same speed and in the same direction