If Ri = 36 Q, R2 = 76 Q, and R3 = 110 Q, find the current through R1. Source of emf1 (E1) = 15 V Source of emf 2 (E2) = 29 V R, R, www E ww- R, Ww- E, ROUND OFF ANSWER UP TO 2 DECIMAL PLACES. INPUT BOTH THE NUMBER AND UNIT (LETTER ONLY). INCLUDE THE SIGN IF THE ANSWER IS NEGATIVE.
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- What is the current in the element of an electric clothes dryer with a resistance of 7.4 Ω when it is connected to 240 V? Express your answer to two significant figures and include the appropriate units. I= How much charge passes through the element in 50 min? (Assume direct current.) Express your answer to two significant figures and include the appropriate units. Q=A student set up the circuit shown for her electronics class. Assuming E = 7.50 V and R = 6.00 Ω, find the following quantities. (a) the current in the 2.00 Ω resistor (Enter the magnitude in mA.) ????? mA (b) the potential difference (in V) between points a and b Vb − Va = ????? VWith eh following values, what is the current through R1, in A? Use positive for to the right, and negative for to the left. V1 = 10.9 V V2 = 16.1 V R1 = 26 Ω R2 = 77 Ω
- What is the radius of a 235.00m length of gold wire whose Paced resistance is 0.32 KQ?R1 = 20Ω, R2 = 12Ω, R3 = 4Ω, V1 = 9V, and V2 = 3V, find the current through V1 and V2A 220 ohm resistor has a diameter of 4.0 mm. If 1.0 C of charge moves through the resistor in 1.0 hour, what is the uniform current density in the resistor?
- What is the current in a wire in which 3.62x1020 electrons pass a single point every 8.79 seconds? Report your answer with three significant digits. (e = 1.602x10-19 C)A 12-volt battery of internal resistance r of 0.05 ohm is to be recharged by a 50-volt dcsource at the rate of 8 amperes.a. What resistance R is to be connected in series with the circuit? ANSWER:_________b. What is the terminal voltage of the battery? ANSWER:_________c. How much energy in joules is dissipated in the resistor in one hour ?ANSWER:_________A child’s electronic toy is supplied by three 1.58-V alkaline cells having internal resistances of 0.0200 Ω in series with a 1.53-V carbon-zinc dry cell having a 0.100-Ω internal resistance. The load resistance is 10.0 Ω . (a) Draw a circuit diagram of the toy and its batteries. (b) What currentflows? (c) How much power is supplied to the load? (d) Whatis the internal resistance of the dry cell if it goes bad, resultingin only 0.500 W being supplied to the load?
- A cylindrical conductor with resistivity ρ, length L, and radius r , has resistance R0=302Ω. If the resistivity and the length of the conductor both have their original values, but instead the radius of the conductor is increased by a factor of 5, what is the new value, in ohms, of the resistance?Exercice 60: In Figure 7.92, the ammeter reads 2.0 A and the volmeter reads 2.0 V. Use this information to find the value of the unknown resistance R as well as the currents I1 and I2. The potential at the terminal of measuring devices identified by a + is higher than the potential at the terminal identified by a -. Answer: R= 3.00 Ohms, I1 = 2.00 A, I2= 4.00 A Please show steps, formulas and explanations for my own understandingThe total amount of charge that has entered a wire at time tt is given by the expression Q=(20C)(1−e−t/(2.0s)), where t is in seconds and t≥0 1.Find an expression for the current in the wire at time t. 2.