a) Use Kirchhoff's rules to show the loops and junctions. b) Find the emf of the battery and reading of the ammeter. c) What will the ammeter and voltmeter read when the switch is closed?
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- 4) Give the Thévenin-equivalent circuit for the circuit in the diagram, as seen between points а. В-D b. А-Е R R R V R V E B V R V R R D R2. Find the current when 1.90 nC jumps between your comb and hair over a 0.800–μs time interval. This is not and will not be graded%3D Ry =? www V = 9 Volts V= 9 Valts Calculate the circuit For the above circuit, say R1 = 10 N on the main line. R2 = 20 N and R3 = 100 Ω. 1) Since R2 and R3 are in parallel, we can use equation (3) to calculate the equivalent total resistor R23 . 2) After that since R1 and R23 are in series, we can use equation (2) to calculate the overall total RT. 3) The battery V=9 volts is known, Ohm's can be applied to RT, total current can be calculated, and the total current is equal to I1 4) With I, and R1, Ohm's law can help us to get V1 5) V1 +V½ (or V3) = 9 volts, we get V2 6) Again, use Ohm's to get I2 and I3. The circuit is solved. %3D Do the calculations. Fill in the table1. Table1---circuit calculation variables Calculated results V1 V2 I2 V3 I3
- A specially constructed kiln in a pottery workshop has Y‐connected heating elements. At one point, the voltage is measured across a heating coil, i.e. between a mains conductor and the zero point. The voltage is 98.15 V. a) What is the main voltage of the network b) How big is the grid's phase voltage Another, also specially designed oven, which is connected to the same network as the example above, is D‐connected. The current is measured in one of the additional conductors. It is 77.25 A. c) What is the current in each of the branches d) What is the voltage across themI need help on getting an easier understanding of using Kirchhoff's Current Loop rules. KIRCHHOFF’S RULES Kirchhoff’s first rule—the junction rule. The sum of all currents entering a junction must equal the sum of all currents leaving the junction. Kirchhoff’s second rule—the loop rule. The algebraic sum of changes in potential around any closed circuit path (loop) must be zero. Analyze the following multi-voltage source circuit for all currents. Use the current directions and loop notation as shown on the figure attached. The value of current I1 = ______ A The value of current I2 = ______ A The value of current I3 = ______ A What is the total power dissipated in all the internal resistances (r1, r2, r3, r4), in milliWatts?5. Given a DC circuit shown below with a DC battery, ammeter and single resistor of resistance R. If the resistance R doubles then what value will the ammeter read? a. 9.00 A b. 6.00 A c. 1.50 A d. 3.00 A e. 36.0 A
- 2) In the circuit shown below, ɛ = 20 V. Find; 40 Q 30Q 30 Q 30 20 Q a. The equivalent resistance of the circuit. b. The current in each resistor. The volyage acroos each resistor. d. The rate at which the thermal energy is generated in the 20-0 -resistor. The power delivered by the battery. с- е- ww4) circuit. On the same graph sketch the output Vout: The graph below shows the input to the illustrated 0.01uF Vin Vaut 1 16kN 0.5 -0.5 -1 -0.002 -0.0015 -0.001 -0.0005 0.0005 0.001 0.0015 0.002 Time (s) Voltage (V)37.) Electrical engineers use resistors to reduce the current through all or part of a circuit a. true b. false
- In the circuit in the figure below, the emf equals 5.99 V and has negligible internal resistance. The capacitance equals 1.46 µF and the resistance equals 1.98 M2. Switch S has been closed for a long time. Switch S is opened. After a time interval equal to one time constant of the circuit has elapsed, a) Find the charge on the capacitor plate b) Find the current c) Find the power supplied by the batteryQUESTION 20 In a DC circuit with a single resistor, a current of 13 Amperes flows through a point in the circuit. After a time of 10 minutes, which of these expressions yields how much charge has flowed through the point in this time in SI units? a. 13 divided by 10 b. 13 times 600 c. 13 times 102. For a real battery of emf E and an internal resistance of r, find the "load resistance" RL which maximizes the power delivered to that load.