I just need help with the circled questions
A 4-ohm resistor and an 8-ohm resistor are 49. connected in series. If the current through the 4-ohm resistor is 2 amperes, the current through the 8-ohm resistor is (1) 1 A (2) 2 A (3) 0.5 A (4) 4 A se. in the circuit diagram beige, ammeter A measures the current suand buttery. 1 supplied by a 10-volt 43. The diagu new below shows two rowston connected to a 20-volt battery. $1) Which two of the restor Bron, have the same equivalent restinor ] The current measured by ammeter A is (ONA (3 20A () 050A (0 40A What is the reading on ammeter AT i. A physics student is given three 13 ofm reshion of Immersion heater has a fordistance with instructions to create the circuit that works What is t'a total electrical have the lowest posible resistance. The correct beater during 40 minsam pad to circuit would be a If the current through the 10 0hm mentors 4 11 X171 In wipers, what is the current Brough Dy 36 12 reshtance of (2) 3.8 x 10'1 15/D:ohm resistor] series circuit with an equivs 65. In a simple circuit two 1.0 ohm ferlabors are 35 The diagram below show a circuit with pro connected in serie meshtor 3) parallel circuit with an equivalent reitance circuit is parallel circuit with an equivalent resistance of 4 0 #6. Which combination of current and potential difference would une energy at the great Which circuit could be used to determine the total current and potential difference of a () A at 110V (2) 6 A at 110V 14) 4 A at 220 V What is the resistance of resistor B,7 87. How much time is required for an operating [) A and B (10 C and D moon mzon men ing ndescent lightbulb to dispute 4) Band C 10 Dad A lectrical energy? Bill An electric circuit contain an operating in 37. Which circuit would have the lowest come element and a It lamp, Which partement reading? explain why the lamp remains lit when 68. While operating at 120 volt, an electric toaster heating element is removed from the orcy has a revivance of 15 chmi. The power used by (13 The lamp hat less resistance than the having the toaster is lament (1) ROW 2) 120W () 950 W. (4) 1808 W The lamp hat more resistance than the 41, Which bagram below shows correct current heating element. direction in a circuit segment? 69. An electric dryer consume 6.2 x 10 joules [ The lamp and heating element ary of energy when operating at 220 volts for 30. connected in unries. minutes. During operation, the dryer draws a The lamp and heating ment are current of connected in parallel (1) 10. A (7) 15 A () 20. A (4) 25A $7. A 10-phm printor and a 5.0-ohm mentor in 3A 70. What is the total amount of electrical energy connected as shown in the diagram below needed to operate a 1600-watt toaster for 60, seconds? $2. The diagram below shows currents in a segment of an electric clecult. (1) 27 (2) 15004 (3) 17904 (4) 96.090 3 71, To Increase the brightness of a desk lamp, a student replaces a 60-watt incandescent 53. The circuit diagram below shows three voltmeter connected across methfork -14- lightbulb with a 100 watt incandescent lightbulb. Compared to the 60-watt lightbulb, the current through the 10-ohm mevictor 1 0 ampere, then the 190-watt lightbulb has then the current through the 3.0-ohm resistor is [1) less resistance and draws more current What is the reading of ammeter A? (2) less resistance and draws less current TWY (3) more resistance and draws more current (4) more resistance and draws love current tricity and M 13 What is the reading of voltmeter Vit
