The charge passing through a section of wire is given by Q = t5 + 4t³ - 6t+1. What is the current through the wire? Ot+¹-31² + t O 5t4 + 12t2 - 5 ㅇㅎt + " - 3t2 + 1 O 5t4 + 12t26 O 5t4 +12t2 - 3t² + t

Suppose you're using a copper wire that has a radius of 0.5 mm, is 3.8 m long, and has a resistivity p=1.7 x 10 8 N- m. What is the resistance of the wire in Ohms?

You have a battery marked "6.00 V." When you draw a current of 0.387 Afrom it, the potential difference between its terminals is 5.25 V. What is the potential difference Δ? when you draw 0.583 A?

are made of the same metal. 7) wires 1 and 2 wire 2 has twice the length and twice the diameter of wire 1. What are the ratios (a) Q₂/Q² of the resistivities and (b) R.2/121 of the resistance of the two wires? A) P₁/P₁ = 1, 1₂/1²₁=0.5 13) P₂/p₁ = 1, 82₂/124₁ =0.25 C) P₁/P₁ = 0.5² h₂/1²₁=0.5 D) P₁/P₁ = 0.25, 1₂₁/1²₁=0.5 2 र