Question 1: Resistor R1 = 5Ω and resistor R2 = 10Ω are connected in series to a voltage source E = 60V. What is the ratio between the power dissipation in R2 and the power dissipation in R1?
1  2  3  4  5

Question 2:


Two metalic bars slide along metalic rails at speeds v1 = .1m/s and v2 = .2m/s as shown above. The bar and the rails are situated in a magnetic field of 4T. What is the induced voltage in the bar and rails?
20mV  30mV  40mV  120mV  150mV

Question 3:


Two wires carry identical currents I, as shown above. At which point is the magnetic field the strongest?
A  B  C  D  E

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