ans a Q 28 For the path PQR in a conservative force field (fig ), the amount of work - Physics - Electric Charges And Fields

Question

ans a
Q 28 For the path PQR in a conservative force field (fig ), the
amount of work done in carrying a body from P to Q & from Q to
R are 5 J & 2 J respectively The work done in carrying the body
from P to R will be -

A) 7 J
B) 3 J
C) 21 J
D) zero

Sanjay Singh · Accepted Answer

Dear student

Work done in closed path in a conservative field is zeroW(P to Q)+W(Q to R)+W(R to P)=02+5+W(R to P)=0W(R to P)=-7JW(P to R)=-W(R to P)=-(-7)J=7JRegards

ans a Q.28. For the path PQR in a conservative force field (fig.), the amount of work done in carrying a body from P to Q & from Q to R are 5 J & 2 J respectively. The work done in carrying the body from P to R will be - A) 7 J B) 3 J C) 21 J D) zero

ans a
Q.28. For the path PQR in a conservative force field (fig.), the amount of work done in carrying a body from P to Q & from Q to R are 5 J & 2 J respectively. The work done in carrying the body from P to R will be -

A) 7 J
B) 3 J
C) $\sqrt{21}$ J
D) zero