Exam 18: Basic Electric Circuits

A 6.0 and a 12. 11eea40a_3ec1_2e8d_97f4_ffd26a7d9b24_TB9720_11 resistor are connected in series to a 36. V battery. What power is dissipated by the 12.0 11eea40a_3ec1_2e8d_97f4_ffd26a7d9b24_TB9720_11 resistor?

Increasing the resistance of a voltmeter's series resistance

State Kirchhoff's loop theorem.

When charging a capacitor with a battery, how would the internal resistance of the battery affect the charging of the capacitor?

When resistors are connected in series

Figure 18-9 is a symbol for which of the following?

Determine the effective resistance between terminals A and B for the circuit shown in Figure 18-12. Each resistor is 10 ?.

The usual household fuse or circuit breaker is rated at

A 2.0 $\mu$ F capacitor is charged through a 50,000. resistor. How long does it take for the capacitor to reach 90% of full charge?

Current just enough to cause ventricular fibrillation is

A 150. $\mu$ A full scale galvanometer is used as a 1.00 A full scale ammeter when shunted by 3.3 m $\Omega$ . What is the coil resistance of the galvanometer?

A galvanometer has a coil with a resistance of 24. $\Omega$ . A current of 180. $\mu$ A causes full-scale deflection. If the galvanometer is to be used to construct an ammeter that deflects full scale for 10.0 A, what shunt resistor is required?

R₁ = 5.6 $\Omega$ , R₂ = 5.6 $\Omega$ , R₃ = 14. $\Omega$ , $\varepsilon$ = 6.0 volts For the circuit shown in Figure 18-13 find: (a) the total resistance connected to the battery. (b) the current in each resistor.

Figure 18-8 is a symbol for which of the following?

See Figure 18-15. Given R₁ = 18. $\Omega$ , R₂ = 44. $\Omega$ , R₃ = 33. $\Omega$ , R₄ = 14. $\Omega$ , R₅ = 12. $\Omega$ , V₁ = 18. volts, and V₂ and 12.volts: (a) determine I₁. (b) determine I₂.

A galvanometer with a coil resistance of 80. deflects full scale for a current of 2.00 mA. What series resistance is required to convert it to a voltmeter reading full scale for 200. V?

When resistors are connected in parallel to a source of emf, the current through each resistor is the same.

A 4.0 $\mu$ F capacitor is charged to 6.0 V. It is then connected in series with a 3.0 M resistor and connected to a 12. V battery. How long after being connected to the battery will the voltage across the capacitor be 9.0 V?

Consider three identical resistors, each of resistance R. The maximum power each can dissipate is P. Two of the resistors are connected in series, and a third is connected in parallel with these two. What is the maximum power this network can dissipate?

Figure 18-10 is a symbol for which of the following?