Gen Physics 2 - 12

L MULTIPLE CHOICE. Encircle the letter that corresponds to the correct answer 1. Which is the SI unit of capacitance? a coulomb c. ohm b farad c. joule 2. Who invented the first recorded capacitor? a Pieter von Musshenbrock c. Michael Faraday b. Edwald Georg von Kleist d Georg Ohm 3. The voll is a unit of a electric field c. electrostatic force b. electric potential energy d potential energy 4. Three capacitors have charges of 0 3, 0.3 and 0.3 Farad. They are arranged in series connection with potential difference of 20 volts. Find the total capacitance of the combination. a. 09F C 10F b. 22 F d 18F 5. Which of the following is not true about resistance? a. The longer the wire, the higher its resistance b. The thicker the wire. the higher the resistance c. The higher the temperature, the higher the resistance. d. The thinner the diameter, the higher the resistance. 6. When the resistance of an electric circuit is increased, the current through the circuit a increases b. decreases C. remains the same J. uxjetermined 13. Which of the following resist the flow of current? a. capacitor c. diode b resistor d. transistor 7. Which of the following unit is equivalent to | Farad? a. I coulomb/volt c. I Newton. meter b. 1 Farad/micier d hg in's' 8. Which of the following describe the flow of positive charges from the positive terminal to negative terminal? a conventional current c. alternating current b. direct current d. electron current 9. What does the last color of the resistor represents? a number of digits c. tolerance b. multiplier d. coefficient 10. Which of the following does not affect the resistance of the wire? a. Cross-sectional area c. Length b. distance d Temperature 1 1. He invented the first electric cell. a. Alessandro Volta c. Nicola Tesla b. Michael Faraday d. Thomas Alva Edison. 12. Which of the following describes the rate of the appliances consumes electrical energy? a. Power c. Current b. Voltage d. Resistor 13. Which of the following devices used to measure electromotive force or potential difference? a. ammeter c. multimeter b. voltmeter d. electricmeter 14. This is use to analyse the voltage, current, and power dissipation. a Circuit diagram c. Parallel Circuit b. Series Circuit d. Series-Parallel O O17. A galvanometer has a coil resistance of 50 ohms and full scale of 10 mA. Compute the amount of voltage found in the circuit. a. 500V b. 50 V c. 5 V d. 0.5 V 18. Which of the following is NOT a part of the 3 prong plug in the power cord? a. Live b. neutral c. ground conductor d. ground wire 19. Which of the following amount of currents can cause death to human? a. 5mA b. 0.05A c. 3 A d. 3mA 20. Wet skin is said to have much less resistance than dry skin. This explains that the water is a/an a. Conductor b. insulator c. semiconductor d. superconductor Il. Give the resistance of the following resistors based on their color bonds? 21. Red-green-yellow-silver 22. Blue-red-orange-yellow gold 23. Black-brown-green 24. White-black-black-gold 25. Violet-green-yellow-black-brown silver Give the color equivalent to the following value of the resistor. 26. 2700 0 27. 770 0 10% 28. 560 kQ 5% 29. 1.7 kQ 30. 250000 5% O O