This diagram shows a square coil about to enter a region of uniform magnetic field of magnetic flux density $0.30T.$ The magnetic field is at right angles to the plane of the coil. The coil has $150$ turns and each side is$2.0cm$ in length. The coil moves at a constant speed of $0.50m{s}^{-1}$

(a) (ii) Determine the magnetic flux linkage through the coil when it is all within the region of magnetic field 

This diagram shows a square coil about to enter a region of uniform magnetic field of magnetic flux density $0.30T.$ The magnetic field is at right angles to the plane of the coil. The coil has $150$ turns and each side is$2.0cm$ in length. The coil moves at a constant speed of $0.50m{s}^{-1}$

(b) Explain why the magnitude of the induced e.m.f. is constant while the coil is entering the magnetic field.

This diagram shows a square coil about to enter a region of uniform magnetic field of magnetic flux density $0.30T.$ The magnetic field is at right angles to the plane of the coil. The coil has $150$ turns and each side is$2.0cm$ in length. The coil moves at a constant speed of $0.50m{s}^{-1}$

(c) Determine the induced e.m.f. across the ends of the coil. 

This diagram shows a square coil about to enter a region of uniform magnetic field of magnetic flux density $0.30T.$ The magnetic field is at right angles to the plane of the coil. The coil has $150$ turns and each side is$2.0cm$ in length. The coil moves at a constant speed of $0.50m{s}^{-1}$

(d) Explain the induced e.m.f. across the ends of the coil when it is completely within the magnetic field

This diagram shows a square coil about to enter a region of uniform magnetic field of magnetic flux density $0.30T.$ The magnetic field is at right angles to the plane of the coil. The coil has $150$ turns and each side is$2.0cm$ in length. The coil moves at a constant speed of $0.50m{s}^{-1}$

(e) from the instant that the coil enters the magnetic field. Your time axis should go from $0 \text{to} 0.8 s.$

(a) State Faraday's law of electromagnetic induction.

(b) A circular coil of diameter $200mm$ has $600$ turns is shown. It is placed with its plane perpendicular to a horizontal magnetic field of uniform flux density $50mT.$. The coil is then rotated through $90°$ about a vertical axis in a time of$120ms$

(i) the magnetic flux passing through the coil before the rotation

(b) A circular coil of diameter $200mm$ has $600$ turns is shown. It is placed with its plane perpendicular to a horizontal magnetic field of uniform flux density $50mT.$. The coil is then rotated through $90°$ about a vertical axis in a time of$120ms$

(ii) the change of magnetic flux linkage produced by the rotation

(b) A circular coil of diameter $200mm$ has $600$ turns is shown. It is placed with its plane perpendicular to a horizontal magnetic field of uniform flux density $50mT.$. The coil is then rotated through $90°$ about a vertical axis in a time of$120ms$

(iii) the average magnitude of the induced e.m.f. in the coil during the rotation.