A flat, rectangular search coil of dimensions 15 mm×25 mm15\text{ mm} \times 25\text{ mm}15 mm×25 mm consists of 120 turns of wire. The coil is placed in a uniform magnetic field of magnetic flux density B=45 mTB = 45\text{ mT}B=45 mT such that the plane of the coil makes an angle of 30∘ 30^\circ\,30∘ with the magnetic field lines, as shown in the diagram.
What is the magnetic flux linkage of the coil in this position?
1.8×10−3 Wb1.8 \times 10^{-3}\text{ Wb}1.8×10−3 Wb
1.0×10−3 Wb1.0 \times 10^{-3}\text{ Wb}1.0×10−3 Wb
8.4×10−6 Wb8.4 \times 10^{-6}\text{ Wb}8.4×10−6 Wb
1.0 Wb1.0\text{ Wb}1.0 Wb
Permanent and induced magnetism, magnetic forces and fields Questions
Practise AQA GCSE Physics Permanent and induced magnetism, magnetic forces and fields with exam-style questions for Foundation and Higher tier. 12 questions covering Poles of a magnet and Magnetic fields, matched to the AQA GCSE Physics (8463) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.