Question
Question: A wire PQR is bent as shown in figure and is placed in a region of uniform magnetic field B. The len...
A wire PQR is bent as shown in figure and is placed in a region of uniform magnetic field B. The length of PQ = QR = l. A current I ampere flows through the wire as shown. The magnitude of force on PQ and QR will be-
A
BIl, 0
B
2 BIl, 0
C
0, BIl
D
0, 0
Answer
0, BIl
Explanation
Solution
F = iB l sin q
FPQ = IB l sin 00 = 0
FQR = IBl sin 900 = IBl