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- ELECTRICAL POTENTIAL AND CURRENT: V IR E-P P IV C Pt Series Circuits: Parallel Circuits: V, = V, + V,+ V, +. V, = V, = V, V, .. 1. 1. R, = R, + R, + R, +. RT R, R Based on the circuit drawn below: (Please use your VIRP chart) R = 15 Q V = 120 V R2 = 20 2 R3 5 2 W-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 NISDIFFERENTIAL EQUATION: Electric Circuits. Solve the following problems. Show your complete solution. When a resistance R (ohms) and a capacitance C (farads) are connected in series with an emf E (volts), the current I (amperes) is given by the equation: dI 1 dE +-I = dt C R dt If R = 1000 ohms, C = 5x10-4farad.and I = 10 amperes for t = 0, find the current for t = 1 second and E = 100 volts.
- 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 :)If three resistors connected in series to a battery. Suppose R1 carries a current of 4.5A, R2 has a resistance of 22.50, and R3 dissipates 95W of power. What is the voltage across R3 and Resistance of R3 ? 1. Voltage (in V) across R3 %3D and 2. Resistance (in 2) of R3 =The resistances R₁ = 152, R₂ = 252, R3 = 10 ,, R4 = 52, R5 = 152, are connected as shown in the figure to a voltage source of V= 25 volts. R1 Calculate, ww R2 ww R3 b) Voltage across R5 (in Volts) = c) Current in R₂ (jn Amperes) = www a. Equivalent resistance of the circuit = d) Voltage across R3 (in Volts) = R4 R5
- Find the expression for the equivalent resistance of 3 resistors (R1.R2.R3) connected in parallel. Sol. In a parallel connection, voltage drops across the resistors so: Using, Ohm's Law V=1 we derive, that 2 = V2/ I3=V3/ Since, the voltage is the same on all resistors, then V= V = Substituting to the, first equation above, we get the following |= V1/ + V2/ + V3/ So: 1 1 1 + + R2 1. Rea R1 R3Solve the following: 1. A certain light bulb has a resistance of 150 when lighted. How much current will flow through it when connected across a 220 V, its normal operating voltage? Draw the circuit schematic diagram>Fin 2. Find the potential difference (Emf) in a certain electric circuit with current flowing at 18 ampere and a floor Polisher connected with resistance of 12 Q? 3. A 12 volts battery operates a 15 ohms digital scale for 5.2 minutes. a) Find the current flowing b) the charges Transferred with the given time. 4. What is the resistance of a conductor at 50° C if its resistance at 0°C is 1 ohm and the temperature coefficient of resistance of 9.8 x 10-³/°C 5. A silver wire has a resistance of 2.3 2 at 0°C and a temperature coefficient of resistance of 3.75 x 10-³/°C. What is final temperature when the final resistance is 3.8 ohms. ? 6. Complete the table : V, Volts 8 volts 20 volts 10 Volts 36 volts I, Ampere 2.8 mA 40A 130mA R, ohms 156 Ω 25 ΚΩ 450 ΚΩ4G l. 9:00 A elearning.ibrict.edu.om | General / Theory Quiz - Physics 2 Question 2 Not yet answered Marked out of 0.50 P Flag question In the following phasor diagram 90° O a. voltage lags O b. 'v' and l' are in phase O c. voltage leads O d. current leads Previous page Next page 1 Announcements
- The voltage applied to a pure capacitor of 50*106 F is as shown in figure. Calculate the current for 0-1 msec. V(t) 100 t (millisec) 1 2 Select one: a. -1 O b. 5 -5 O d. 10. An electric power station is producing 1.40 x 10 W of power that is to be sen o* town located 60.0 km away. Each of the two wires that comprise the trannion e resistance per kilometer of length of 400 x 10 Olpe/km. Find the power lont in beatin the wires if the voltage is stepped up from 2200 V to 20000 V using an ideal tranlorr. a) 1.21 x 10 Watts b) 2.32 x 10 Watts c) 1.12 x 10 Watts d) 5.59 x 10 Watts e) 1.16 x 10 Watts nhilo L4.00 yu which have their tratisCan you pls help me solve this. 5 resistors are connected as shown in the figure. The voltage on AB is 30V and the total resistance is 2 ohms. The voltage across resistor 1 is 14.25V and the current passing resistor 3 is 6 amperes. Determine the total current of the circuit and all other unknowns (r4 = 6 ohms, r5 = 10 ohms) Solve for: (a) Resistance of R2 (b) current through I4 (c) current through I1 (d) voltage across R4 (e) voltage across R2 (f) voltage across R3 (g) Total current *Pls refer from the photo attached* •Pls answer with complete and detailed solution (3 decimal places all final answers with correct units) •Sketch an illustration/diagram with labels (this is a must; for a better understanding) Thank you I will give your answer a LIKE for helping me... **Pls refer from the photo attached. •Pls answer with complete and detailed solution (3 DECIMAL PLACES all final answers with correct units) •Sketch an illustration/diagram with…