Part A: Multiple Choice Questions (10 marks) 1. (K) If two 100 Q resistors are placed in series, their total resistance is: (a 100 0 (b) 200 Q (c) 10 000 Q (d) 50 Q 2. (K) The potential difference across a 100 ohm resistor that has 0.01 amperes of current is: (a 0.01 volt (b) 100 volt (c) 1 volt (d) 10 000 volt 3. (K) A load that has 2 A of current passing through it with a potential difference of 6 V has a resistance of: (a 20 (b) 2/6 0 (c) 12 0 (d) 30 SPH3U: Physics, Grade 11, University Preparation Unit 5: Electricity and Magnetism 1. (K) If there are three 2.0 W resistors connected in parallel, their equivalent resistance is: (a) 0.67 W (b) 1.5 0 (c) 2.0 0 (d) 6.0 0 5 (A) If five light bulbs are connected in series to an energy source and one of them burns out, the others will: (a go out (b) become brighter (c) become dimmer (d) not be affected 6 (A) How do potential drop and potential rise compare in a completed simple circuit? (a Potential rise does not affect potential drop. (b) Potential rise in the source is equal to the potential drop in the load. (c) Potential rise in the source is greater than potential drop across the load. (d) Potential rise in the source is less than potential drop across the load. 7 (A) How will the current in the first ammeter compare with the reading in the second? (a) Az has a reading of zero. (b) A: and A are equal. (c) An is less than Ae. (d) At is greater than Az. A