Q10 · 2024 · Paper 1Simple familiar1 mark
QUESTION 10
An experiment was conducted to determine the force experienced by an 85 cm wire with a 2.4 A current flowing through it in an external magnetic field. It was rotated through varying angles within the magnetic field such that data analysis identified the relationship F = 0.0306 sin θ. What is the order of magnitude of the strength of the external magnetic field?
(A)
10−4 T
(B)
10−2 T
(C)
102 T
(D)
104 T
WORKED SOLUTION
1 markAnswer B
ANSWER
B
Worked solution
For a straight wire, . Hence the coefficient , giving T, whose order is T. Option B.
Selects option B.
Worked explanation by QCE Vault; correct option verified against the QCAA answer key.