Answer:
by using p = mv equation we can find v,
6 = 1.3 v
4.615 = v
Lorna should close the switches S3 and S4,and leave them closed.
Then, both bulbs are controlled by S5.
When it's closed, they both light. When it's open, they're both off (dark).
Answer:
Explanation:
If magnetic field exists parallel to the direction of motion of electron , no force will act on the electrons and hence there will be no deflection in them .
In such cases , the magnitude of magnetic field is immaterial . No matter how high or low magnitude of magnetic field be , if it is parallel to the velocity of electron , it will not be deflected as the force created on them will be zero.
Only in case magnetic field makes some angle with the direction of velocity , force will be created and electron will be deflected .
Answer:through a small space through atoms
Explanation: