A wire bent in the form a right-angled triangle PQR, carries a current 1 A. It is placed in a region of a uniform magnetic field B= 0.2 T. If PR = 1 m, the net force on the wire is

Question

A wire bent in the form a right-angled triangle PQR, carries a current 1 A. It is placed in a region of a uniform magnetic field B= 0.2 T. If PR = 1 m, the net force on the wire is <img class="img-fluid question-image" alt="Question" src="https://cdn.tardigrade.in/q/nta/p-krjpqlauxt7y.png" /> (A) 1.73 N (B) 3.46 N (C) 2.732 N (D) Zero

Tardigrade Admin · Accepted Answer

overset arrow F = i [. overset arrow ℓ × overset arrow B ]. ∀ overset arrow ℓ = Vector length here overset arrow F = 0, for closed loop

Q. A wire bent in the form a right-angled triangle PQR, carries a current 1 A. It is placed in a region of a uniform magnetic field B= 0.2 T. If PR = 1 m, the net force on the wire is

1.73 N

3.46 N

2.732 N

Zero

$F \to = i [ℓ \to \times B \to]$
$\forall ℓ \to$ = Vector length
here $F \to$ = 0, for closed loop

Q. A wire bent in the form a right-angled triangle PQR, carries a current 1 A. It is placed in a region of a uniform magnetic field B= 0.2 T. If PR = 1 m, the net force on the wire is

1.73 N

3.46 N

2.732 N

Zero

F→=i[ℓ→×B→] ∀ℓ→ = Vector length here F→ = 0, for closed loop

$F \to = i [ℓ \to \times B \to]$
$\forall ℓ \to$ = Vector length
here $F \to$ = 0, for closed loop