What is the current through resistor A?

Two cylindrical resistors are made from the same material and are equal in diameter. The first resistor has length L, and the second resistor has length 2L. If the same current flows through both, compare the voltage across the two resistors:    V1 > V2   V1 = V2   V1 < V2   none of the above

Which of the following is a formula for the power dissipated by a resistor? Let V be the voltage across the resistor, / be the current through the resistor, and R is the value of the resistance of the resistor. PIR V/R O PR

A new battery with an unknown emf is inserted to connectpoints A and B. The result is that the current through ??1 is reduced to half of its previous value but still flows in the same direction With this new battery in place, find the current through resistor ?2.

The switch is flipped over to position b and the circuit is allowed to reach electrostatic equilibrium.  What is the measured voltage across C2 to 3 significant digits?

Switch S1 has been closed and S2 has open for a long time until the capacitors are fully charged. At t=0, S1 is opened and S2 is closed. If E=12V, C₁=4mF and C₂=8mF, R₁-3.22k0 and R₂-1.22 k0; what is the current passing through R₂ at t=0 in units of mA? Please express your answer using two decimal places. & R₁ www Answer: S₁ HH C₂ C₁. a b I S₂ R₂