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Question
The moment of a magnet (15 cm × 2 cm × 1 cm) is 1.2 A-m2. What is its intensity of magnetization?
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Solution
Magnetization,
M = `"m"_"net"/"V"`
= `"m"_"net"/(l xx "b" xx "h")` ….[∵ V = l × b × h]
= `1.2/(15 xx 10^-2 xx 2 xx 10^-2 xx 1 xx 10^-2)`
= `4 xx 10^4` A/m
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