f) 5.0×10-5 T 06 A coil of wire has an ammeter attached to it. Rose is doing an

Question

f) 5.0×10-5 T 06 A coil of wire has an ammeter attached to it. Rose is doing an experiment to determine under what circumstance the ammeter reads zero. What does she find? a) Bar magnet moved rapidly towards the coil b) Bar magnet held a constant distance away from the coil c) Another coil of wire (attached to a battery) with a current flowing through it is moved towards the coil d) Bar magnet moved rapidly away from the coil Q7 A magnetic field points into the page. A small loop of wire is in the plane of the page and sits in the magnetic field (area vector of loop is narallel to maunctic

Explanation / Answer

a) when bar magnet mover rapidly towards coil it links with magnetic flux so ammeter deflects.

b)when bar magnet held at a constant distance there no deflection in ammeter it shows zero reading.

c)ahen cureent passing through a wire around it we get magnetic field.in this case we get deflection in ammeter.

d)when bagnet moved rapidly away we bet deflections in ammeter.But magnetic flux links with the coil decreases,we get deflection in opposite way.

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