Answer:
The voltage across the capacitor decreases by a factor of 2.
Explanation:
As we know that capacitor is initially charges by battery connected across it
so we have
now capacitor is disconnected
so charge on the capacitor is conserved
Now a dielectric is inserted between the plates of the capacitor
So we will have
now the new voltage across the plates of capacitor is given as
so voltage between the plates of capacitor is decreased by factor of "k"
C) An unbalanced force is acting on the car in the direction east
I'm pretty sure that the only right answer is <span>B) a north-seeking pole of unit strength with a south-seeking pole of the same strength. Because there are no single magnetic poles.</span>
Answer:
The length of the wire is 2.86 m
Explanation:
Given:
Current A
Magnetic field T
Force N
Angle between wire and magnetic field 46°
The magnetic force on the current carrying wire is given by,
Where length of wire
m
Therefore, the length of the wire is 2.86 m