Questions
Two rods are of same material and have same length and area. Heat flows through them in 12 minutes, when they are joined side by side. If now both the rods are joined in
parallel, then the same amount of heat will flow in:
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Correct option is B
∆Q∆t=KA∆Tl⇒∆Q12=KA(∆T)2l and ∆Qt=K(2A)∆Tl⇒t=3 min.Similar Questions
Water can be heated in a cup of paper because:
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