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Current I flowing through a metallic wire is gradually increased. Show graphically how heating…
Current I flowing through a metallic wire is gradually increased.
Show graphically how heating power (P) developed in it varies with the current (I).
Draw: graph of heating power (P) versus current (I)
Must show: P on vertical axis, I on horizontal axis, parabolic curve passing through origin
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From ISC 2025 Specimen Physics Paper 1, question 1(B)(i).