A the current through the Zohm resistor is 4.0A yoiny from Ча. IZV Left to TCight A what is the Curent în the Othes brunches of the circvit? twhat is the Voltuge dap across the 4 ohm resistor? A What is the Voltage cdrop Across the 3 ohm ru sistor ?
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Consider the current I1 and I2 flowing down to the 4 Ω and 3 Ω resistors respectively as in the diagram below.
Consider the diagram below.
Apply Kirchhoff’s current law at node B.
Apply Kirchhoff’s voltage law in the loop ABEFA.
Put 1 A for I1 in equation (1) and find I2.
(a)
Current through the branch BE and CD are 1 A and 3 A respectively.
Step by step
Solved in 3 steps with 6 images
- 4. a. Determine the equivalent resistance of the "ladder" of equal 175 Q resistors shown here. In other words, what resistance would an ohmmeter read if connected between points A and B? R R R R. R R R R Bon RAB = b. What is the current through a 50.0 V battery connected between points A and B?A. Determine the equivalent resistance fir the circuit.keep vaules in ohms B. Determine hiw much current the battery produces. keep vaules in amps C. Determine the voltage across R12 and R3; call these values V12 and V3, keep the vaules in volts. then usr ohms law: V=i r, to fkmd the current across R12 and R3; call tjese 12 and 13, keep these vaules in amps. D. use ohms law to caculare the voltages across R1 and R2; call these vaules V1 and V2, keep results in volts. Requivatont,scris= Sihi=R1 tket . kequivaknt, papli=Zi Ri =RI K You circuit are given the following below. combination Z Rz R3 where V is a 12 V battery; R1 is 330ohms R2 is 180 ohms R3 is 270 ohms please write all work legaie thanks :)The compressor on an air conditioner draws89.6 A when it starts up. The start-up time isabout 0.282 s.How much charge passes a cross-sectionalarea of the circuit in this time?Answer in units of C.
- 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 tüitwhat is the total resistance? Assume that the current enters one coraer and the sides of a cube. exits at the diagonally opposite corner. B. A cell with internal resistance of 1.0 o is connected in series withn5.0 oresistor and 3.0 N. The voltage across the 5 n resistor is 5 V. (al What current flows through the circuit? (b) What is the voltage across the 3 a resistor? iel What is the terminal voltage of the cell? (d) What is the emf of the cell? 9. There are 100 graduations In the scale of an ammeter with internal resistance of 0.18 n and intended to measure a current up to 10 A. (a) What is the value of each graduation? (b) Convert this to an ammeter that can measure up to 100 A. (c) How will the value of the graduations change? 10. There are 30 graduations in the scale of a voltmeter with an internal ading of 30 V.Problem 1: Fill in the VIR Chart for the circuit below. I already broke it into chunks tor you, but you need to determine how to solve. Component I R R, R qu R2 2.5 R2 R3 R. 3 R, R, 10 R, 2 R. 5 R, 2.5 RA RA RTotal
- A cylindrical conductor has resistance R0=40 ohms. If we decrease the radius of the conductor by a factor of 2, while keeping the rest fixed, what is the new resistance? b. A battery with emf of 12 V, with an internal resistance of r=.5 ohms is connected in series with this cylindrical conductor (with radius reduced). what is its terminal voltage? Keep at least 6 sig. figs.Compare between incandescent lamps (70 watt) and CFL lamp (17 watt). if the price of incandescent is 3 NIS and the price of the florescent is 12 NIS and the price of the KWH is 0.5 NIS assuming that both lamps will work 10000 hours, how many NIS we save when we use CFL lamps. ut of uestion Select one: a. 137.5 NIS Ob. 271 NIS O c. 230 NIS d. none of these e. 150 NISc Determine Hhe curfent thraugh the 1 chm resistor. ww はV
- Solve the following: 1. How many nanocoulomb are there in 3.65 billion electrons ? 2. A 25 ampere electric current flows in a conductor in 75 millisecond. Find: a. current equivalent in mA? b. How many charges are transferred ? c. How much work is required to transfer if 3V is applied. 3. A charge of 3.5 µC present in an electric field produces a force of 0.008 Newton. What is the intensity of the electric field ? 4. A charge of 0.6 µC is placed in an electrostatic field whose intensity is 3 x 105 N/C. How strong is the force acting on the charge ? 5. Two objects are both negatively charge with 0.04 coulomb each and 140 cm apart. What kind of force exist Between charges? How much? 6. Find the force that exist between two charges of 8.53 μC and 4.5 µC that 0.25 meters in air?Consider the following circuit. R Which of the following configurations do you use to measure current and voltage? A B R R wwHow long willit take a charged 80 uF capactor to lose 37%% of its initial energy when it is allowed to discharge through a 45 O resistor? a. 3.58 ms O b. 1.66 ms Oc 1.79 ms O d. 0.51 ms Oe. 0.83 ms Next page Dage Introduction to Phys102> Jump to