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=

Q: Find the current I through the circuit. I=    (mA). Find the voltage across each resistor. Give your…

A: Applying kirchoffs loop rule, 12-(10+20+10+10+10)*10^3 * I -24 =0   I=-12(60×103)=-2×10-4A=0.2mA

Q: Figure 2 below shows a capacitor of capacitance C is connected in series with battery of emf, E, a…

A: a) The power delivered by the circuit isp(t)=V(t)i(t)i(t)=E-Vc(t)RwhereVc(t)=E(1-e-tRC) is the…

Q: The electric current I in a circuit shown in the figure was measured as a function of the resistance…

A: In the circuit Relationship between the current, emf and resistance.  Where r internal resistance R…

Q: Two heaters A and B are in parallel across supply voltage V. Heater A produces 757 kcal in 20 min…

A: Given that For heater A Heat H = 757 kcal Time t = 20 min Resistance RA = 10 ohm For heater B Heat H…

Q: A resistor is wired to a battery in a circuit and dissipates a power P1 as heat.  A second resistor,…

A: Given, Power dissipated by single resistor= P1 The power dissipated by two resisters when in series=…

Q: Two resistors are connected in parallel with an 96 volt battery. The resistors have values of R1 =…

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Q: consider the circuit shown in (Figure 1). The batteries ave emfs of & = 9.0 V and & = 12.0 V and the…

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Q: 3. Find the readings of the ammeter and voltmeter in the circuits in Figure 3. The resistance of the…

A: All the resistances given here are in parallel configuration. Thus, the voltage across these…

Q: A voltage source with a 3.3K has a voltage source of 24V. The current being measured is mA.

A:

Q: Two different wires, of the same cross-sectional area, are connected in a series as part of a…

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Q: The voltage, V, (in volts) across a circuit is given by Ohm's law: V = IR, where I is the current…

A: Solution:-Given thatcurrent (I)=2 AdIdt=10-2 amp/sR1=4 ohmsdR1dt=0.5 ohm/sR2=5 ohmsdR2dt=-0.1 ohm/s

Q: Make a VIRP table and complete it by measuring the voltage across each resistor and the power supply…

A: The resistors R2 and R3 are in parallel. The resistance Rp and R1 are in series. Determine the…

Q: The current in a single-loop circuit with one resistance R is 5.8 A. When an additional resistance…

A:

Q: Copper wire of diameter 0.289 cm is used to connect a set of appliances at 120 V. which draw 1450 W…

A: diameter of copper wire = 0.289 cm Radius of copper wire = 0.1445 cm V = 120 volts Total power =…

Q: Part A An electric device draws 6.60 A at 240 V If the voltage drops by 20 % , what will be the…

A: Current (I) = 6.60 A Voltage (V) = 240 volts

Q: You have three 1.1 kΩkΩ resistors. What is the value of the equivalent resistance for the three…

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Q: resistance of an electric heater is 45 Ω when connected to 120 V. How much energy does it use…

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Q: Current has a heating effect due to the law of conservation of energy. A sealed container containing…

A: If I is the current and V is the voltage ,the heat energy produced in t second due to the current…

Q: 2. A certain wire has a resistance R. What is the resistance of a second wire, made of the same…

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Q: 1.15 When a car has a dead battery, it can often be started by connecting the battery from another…

A: Given: v=12vI=40At=1.5min=90s

Q: A battery with an emf of 21 V delivers a constant current of 3.7 mA to a device. How much work does…

A: (given) Battery voltage (V) = 21 V               Current (I) = 3.7 mA…

Q: Solve the following problems with complete solutions and units using 2 decimal digits: The tungsten…

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Q: Consider the circuit shown. The emf source has negligible internal resistance. The resistors have…

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Q: Two cylindrical resistors Ri and R2 made from the same material are connected in parallel in a…

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Q: A television set connected to a 120 V outlet consumes 35 W of power. Part A How much current flows…

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Q: Potential difference (V) vs. current (A) 00 00 y = 0.0667x 00 00 00 00 00 00 0.2 0.4 0.6 0.8 1

A: according to ohm's law V=IR

Q: An engineer built the circuit depicted in the figure. Assuming E = 7.70 V and R = 5.40 0, find the…

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Q: Two different wires, of the same cross-sectional area, are connected in series as part of a circuit.…

A: Required : Part (a)  If the electric field in wire 1 is E1, and the electric field through wire 2 is…

Q: A battery with an emf of 26 V delivers a constant current of 4.3 mA to a device. How much work does…

A: Given Data:Emf of battery E = 26 VCurrent I = 4.3 mA = 4.3×10-3 ATime t = 5 minutes = 5 ×60 st = 300…

Q: What is the resistance of a 3.4-m length of copper wire 1.8 mm in diameter? The resistivity of…

A:

Q: A resistor of 9 ohms is carrying  a current of 4 amperes.  What is the voltage that would be…

A: Given data:  Resistance (R) = 9 Ω Current (I) = 4 A Required: Voltage (V)

Q: Consider the circuit shown in (Figure 1). The current through the 6.00 2 resistor is 4.00 A, in the…

A: Find the voltage across 6 ohm resistor.V6=I6R6=4 A * 6 ΩV6=24 VThe voltage across the 8 ohm resistor…

Q: Three resistors, R1= 11 Ω, R2 = 50 Ω, and R3=R, are connected in series with a 24.0 V battery. The…

A: Solution-

Q: Resistivity chamber as shown in the picture, with a hemispherical hole (radius 4 cm) into which a…

A: The resistivity is the amount of resistance offered by a 1-meter-long rod having an area of 1 m2.…

Q: When resistors 1 and 2 are connected in series, the equivalent resistance is 22.10. When they are…

A: Let we have two resistors  R1 and R2 . In series combination equivalent resistance is  R1+R2 = 22.1Ω…

Q: Solve the following Physics problem. Show your solutions. Round off your final answer in a whole…

A: Write the expression for the terminal voltage of 50 V. Here, E represents the electromotive force,…

Q: Three resistors are connected as shown below. R1 = 25 Ω, R2 = 35 Ω, and R3 = 28 Ω. The voltage…

A: The voltage applied, V=90 V The resistance, R1=25 Ω The resistance, R2=35 Ω The resistance, R3=28 Ω…

Q: In the following Figure, R1=0.5 Ohm, R2=0.5 Ohm, and R3=5 Ohm. The current through R2 is 4.00 A.…

A: Given: From figure Resistance R1 = 0.5 ohm Resistance R2 = 0.5 ohm Resistance R3 = 5 ohm The current…

Q: An electric heater is constructed by applying a potential difference of 99.6V across a wire with a…

A: Power = V2/R

Q: 2.1 Calculate the values of the currents I1, I2, I3, I4 and the voltages V1, V2, V3, V4, in Fig. 4…

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Q: A 16.0-m length of wire consists of 7.0 m of copper followed by 9.0 m of aluminum, both of diameter…

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Q: Suppose you have a circuit in which you have connected 3 batteries, each of which that has voltage…

A: Given data, The voltage of the battery, V=2.2 V Number of batteries, n=3

Q: A student wanted to make a 701 Watt toaster for his physics professor. If the toaster will be…

A: Power is  P=701 watt Voltage is V=120 V

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.