Physics equations/21-Circuits, Bioelectricity, and DC Instruments/Q:circuits

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<quiz display=simple> {An ideal 5.2 V voltage source is connected to two resistors in parallel series. One is 1.2$k\mathrm{\Omega }$, and the other is 2.8 $k\mathrm{\Omega }$. What is the current through the larger resistor? | type="()" } -a) 0.7 mA. -b) 0.9 mA. -c) 1.1 mA. +d) 1.3 mA. -e) 1.5 mA.

{A 7.7 ohm resistor is connected in series to a pair of 5.8 ohm resistors that are in parallel. What is the net resistance? | type="()" } -a) 6.1 ohms. -b) 7 ohms. -c) 8 ohms. -d) 9.2 ohms. +e) 10.6 ohms.

{Two 8 ohm resistors are connected in parallel. This combination is then connected in series to a 6.6 ohm resistor. What is the net resistance? | type="()" } -a) 9.2 ohms. +b) 10.6 ohms. -c) 12.2 ohms. -d) 14 ohms. -e) 16.1 ohms.

{An ideal 7.9 volt battery is connected to a 0.09 ohm resistor. To measure the current an ammeter with a resistance of 20$m\mathrm{\Omega }$ is used. What current does the ammeter actually read? | type="()" } +a) 71.8 A. -b) 82.6 A. -c) 95 A. -d) 109.2 A. -e) 125.6 A.

{A battery has an emf of 5.3 volts, and an internal resistance of 326 $k\mathrm{\Omega }$. It is connected to a 3 $M\mathrm{\Omega }$ resistor. What power is developed in the 3 $M\mathrm{\Omega }$ resistor? | type="()" } -a) 5.01 $\mu$W. -b) 5.76 $\mu$W. -c) 6.62 $\mu$W. +d) 7.62 $\mu$W. -e) 8.76 $\mu$W. </quiz>