Aluminium (α = 4 × 10^–3 K^–1) resistance of 60Ω and carbon (α = –0.5 × 10^–3 K^–1) resistance of 40Ω are connec

Aluminium (α = 4 × 10^–3 K^–1) resistance of 60Ω and carbon (α = –0.5 × 10^–3 K^–1) resistance of 40Ω are connected in parallel. The combination is heated. The effective resistance

(1) Greater than 24Ω

(2) Less than 24Ω

(3) Greater than 40Ω

(4) Greater than 100Ω

Aluminium (α = 4 × 10^–3 K^–1) resistance of 60Ω and carbon (α = –0.5 × 10^–3 K^–1) resistance of 40Ω are connected in parallel.

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