**Q1. If 750 µA is flowing through 11 k ohms of resistance, what is the voltage drop across the resistor?**

A.8.25 V

B.82.5 V

C.14.6 V

D.146 V

**Answer: Option A**

**Q2. The formula to find I when the values of V and R are known is**

A.I = VR

B.I = R/V

C.V = IR

D.I = V/R

**Answer: Option D**

**Q3. A resistor is connected across a 50 V source. What is the current in the resistor if the color code is red, orange, orange, silver?**

A.2 mA

B.2.2 mA

C.214 mA

D.21.4 mA

**Answer: Option B**

**Q4. Approximately how many milliamperes of current flow through a circuit with a 40 V source and 6.8 k Ohms of resistance?**

A. 27.2 mA

B.59 mA

C.5.9 mA

D.590 mA

**Answer: Option C**

**Q5. How much resistance is required to limit the current from a 12 V battery to 3.6 mA?**

A.3.3 k Ohms

B.33 k Ohms

C.2.2 k Ohms

D.22 k Ohms

**Answer: Option A**

**Q6. What is the voltage source for a circuit carrying 2 A of current through a 36 Ohms resistor?**

A.1.8 V

B.18 V

C.7.2 V

D.72 V

**Answer: Option D**

**Q7. What is the approximate resistance setting of a rheostat in which 650 mA of current flows with a 150 V source?**

A.9.7 Ohms

B.97 Ohms

C.23 Ohms

D.230 Ohms

**Answer: Option D**

**Q8. How much voltage is needed to produce 2.5 A of current through a 200 Ohms resistor?**

A.50 V

B.500 V

C.80 V

D.8 V

**Answer: Option B**

**Q9. When there is 12 mA of current through a 1.2 k Ohms resistor, the voltage across the resistor is**

A.14.4 V

B.1.4 V

C.100 V

D.10 V

**Answer: Option A**

**Q10. A resistance of 3.3 M Ohms is connected across a 500 V source. The resulting current is approximately**

A.15.1 µA

B.151 µA

C.66 mA

D.660 mA

**Answer: Option B**

**Q11. You are measuring the current in a circuit that is operated on an 18 V battery. The ammeter reads 40 mA. Later you notice the current has dropped to 20 mA. How much has the voltage changed?**

A.9 V

B.900 mV

C.0 V

D.18 V

**Answer: Option A**

**Q12. The current through a flashlight bulb is 40 mA and the total battery voltage is 4.5 V. The resistance of the bulb is approximately**

A.112 Ohms

B.11.2 Ohms

C.1.2 Ohms

D.18 Ohms

**Answer: Option A**

**Q13. If 24 V are applied across a resistor and there are 10.9 mA of current, the resistance is**

A.220 k Ohms

B.22 k Ohms

C.2.2 k Ohms

D.260 k Ohms

**Answer: Option C**