1. Are the resistors connected in series or parallel? 2. What is the equivalent resistance of the resistor pair. 3. Use V = IR and the equivalent resistance to find the total current though the battery. 4. How much current flows through each of the two original resistors?
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- Three 300- resistors areconnect in series with anAAA battery with a rating of 3 AmpHours. (a) How long can the battery supply the resistors with power? (b) If the resistors are connected in parallel, how long can the battery last?(a) What is the terminal voltage of a large 1.54-V carbon-zinc dry cell used in a physics lab to supply 2.00 A to a circuit if the cell’s internal resistance is 0.100 ? (b) How much electrical power does the cell produce? (c) What power goes to its load?min firinim RI R. 11. In the circuit at right, let all internal resistances be r= 2o and all other R2 resistances be R = 80 a. The battery MFs are: R3 5 = 600 v 5, = 120 v 5 = 240 v R7 R6 What is the current through resistor (R,)? (in amps) a. 3.664 b. 4.580 c. 1.832 d. 2.748 e. 1.791 tüit
- Consider the following circuit ww R1 R2 where V = 10.0V, R2= 10.0k2 and R3 = 20.0kN. 1. Are the resistors connected in series or parallel? 2. What is the equivalent resistance of the resistor pair. 3. Use V = IR and the equivalent resistance to find the total current though the battery. 4. How much current flows through each of the two original resistors? (Hint: Note that each of the two resistors has the same voltage across them so you can use ohms law for each of them.) 5. Sum the two currents together, do you get the current through the battery? wwA capacitor of capacitance C is connected to four resistors R = 62 R, = 4O R, =90 and R 60 %3D and a battery V= 36 V with an open %3! switch. R, R. R R. What is the voltage across R1 when the switch has just been closed? Select one: O a 21.6 V O b. 0V O c. 14.4 V O d. 36 V The following is a part of a circuit. The potential of V = 200 V is provided at point a that is connected to resistors = 40 2=60 and 3 =9 12:12 PM 5/13/2021 近You have an unlimited quantity of 10.0 ohm resistors, but you need to arrange them to achieve a total resistance of 13.3 ohms. How many 10.0 ohm resistors do you require, and what is the optimal arrangement to achieve this resistance? a. 2 in series with 2 in parallel b. 1 in series with 3 in parallel c. 4 in parallel d. There is no way to connect 10.0 ohms resistors in order to get 13.3 ohms.
- 2. Consider the circuit below. The values of the resistors and battery are: R₁ =5Q, R₂ =3Q, R₂ = 1 Q, R = 4, V₁ = 14 V R1 tr V R2 W R4 R3 a. What is I, through R.? b. What is the voltage across R.? c. Now imagine all the resistors have been replaced with capacitors. The values of capacitances are C₁ = 7 mF, C₂= 2 mF, C, = 1 mF, and C₂ = 5 mF. What is the equivalent capacitance of all capacitors in the circuit? d. How much charge is stored on C₁?ww R1 R2 ww 1. Are Ri and lR2 connected in series or parallel? 2. If R1 = 5k2 and R2 = 10kN, what will the equivalent resistance be? 3. If the battery is a 12V battery, what will the current through the it be?For the circuit shown in the Figure B21. Assume E=12V, R1, R2=2K2 and R3-3K2. Calculate, i. Output voltage (Vo) ii. Current flowing through resistor R1 ii. Current flowing through resistor R3 RI Si E Vo Si R3 Figure B21 ww.i
- Let us consider the following circuit where two batteries 1=2l V with internal resistance 1=0.3 2 and = 12 v with = 0.20 %3D are connected to two resistors R, = 1.50 and R2 with the current = 2 A R2 What is the value of the resistance R2 ? Select one: O a. none of these O b. 52 O c. 10 2 O d. 750 O e 2.5 2 Three batteries of = 15 V with intemal resistancer = 12/ and -12 are connected to two resistors = 20 and R, = 20 The 12:30 PM 5/13/2021Six resistors are connected to a battery. It is known that R1=5 ohm, R2= 25 ohm, R3= 80 ohm, R4= 10 ohm, R5= 60 ohm, R6= 10 ohm. a. What is the equivalent resistanceof the circuit? b. If the battery voltage is 48 V and if we ignore its internal resistance, what is the total current Itot in the main path? c. What is the current I3 through R3? d. What is the current I4 through R4 ? What is the voltage V4 across R4?In the figure, R, = 24 2, R, = 72 2 and R, = 48 2 are connected across points "a" and "b". A potential difference V is applied across the system ; if the potential difference across resistor R, is 144 volts then what is the 9. Rz manng R3 power dissipation in resistor R,? (in watts) a. 3456 b. 2592 c. 5184 d. 1728 e. 1296