1) Objects are charged through the transfer of..? a) Protons b) Neutrons c) Positrons d) Electrons 2) Which of the following is not an insulator? a) Wax b) Glass c) Iron d) Rubber 3) Why does a person's hair stand on end when they use a Van de Graaf generator? a) The hair repels from the generator b) Each hair is attracted to the other hairs c) The hair is attracted to the sky d) Each hair is repelled from other hairs 4) What charge do electrons have? a) Positive b) Negative c) Neutral d) They are not charged 5) What charge do protons have? a) Positive b) Negative c) Neutral d) They are not charged 6) Why do paint sprayers charge paint droplets? a) So they dry faster b) So they repel from each other c) So they attract to each other d) So they do not stick to the wrong thing 7) The voltage across a resistor is 10V and the current is 2A. Calculate the resistance. a) 5 Ohms b) 4 Ohms c) 3 Ohms d) 2 Ohms 8) What is the potential difference across a 6 Ohm resistor when the current through it is 1.5A? a) 9V b) 4V c) 4.5V d) 7.5V 9) What is the voltage of V1 if the voltage of the cell is 12 V and all the resistors are the same? a) 12 V b) 3 V c) 4 V d) 2 V e) 6 V 10) What is the current through the left resistor if the current through the cell is 6 A? a) 6 A b) 1.5 A c) 2 A d) 3 A e) 4 A 11) What is the voltage across the 2 ohm resistor if the voltage of the cell is 12 V? a) 12 V b) 3 V c) 4 V d) 2 V e) 6 V 12) What is the current through R1 if the resistors are the same and the current through the cell is 6 A? a) 6 A b) 1.5 A c) 2 A d) 3 A e) 4 A 13) Three 15 ohm resistors connected in series will have a total resistance of ........ a) 10 ohms b) 45 ohms c) 15 ohms d) 5 ohms e) 7.5 ohms 14) Three 15 ohm resistors connected in parallel will have a total resistance of ........ a) 10 ohms b) 45 ohms c) 15 ohms d) 5 ohms e) 7.5 ohms

P5 circuits quiz

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