At a particular point in a material with resistivity r the current density has magnitude J. Show that the power per unit volume dissipated at this point is (J^2)r.
Q: A 2.00-nF capacitor with an initial charge of 5.14 pC is discharged through a 2.29-ki2 resistor. (a)…
A: GivenC=2 nF=2×10-9 FInitial charge, Q=5.14 μC=5.14×10-6 CResistance , R=2.29 k ohm
Q: Calculate the current in the resistor 9.00 µs after the resistor is connected across the terminals…
A: (a) Expression of current through RC circuit is: I=QRCe-tRC Substitute the values.…
Q: A 2.00-nF capacitor with an initial charge of 4.63 μC is discharged through a 2.15-k resistor. (a)…
A: See below
Q: A 165-kV power transmission line carrying 500 A is hung from grounded metal towers by ceramic…
A:
Q: A 2.00-nF capacitor with an initial charge of 5.14 pC is discharged through a 2.29-k2 resistor: (a)…
A:
Q: our body is a moderately good conductor of electricity. Taken as a whole, your body's resistance…
A: resistance of body when it is dry = 1500 ohm resistance of body when it is wet = 500 ohm Voltage (V)…
Q: 2.00-nF capacitor with an initial charge of 5.30 µC is discharged through a 1.29-k2 resistor. (a)…
A: Write the given values of this problem: C=2 nF q=5.30 μCR=1.29 k ohm
Q: A 200-volt electromotive force is applied to an RC-series circuit in which the resistance is 1000…
A: Solution: The charge and current in a series RC circuit are given by the following, qt=CV1-e-t/RC…
Q: A 245-kV power transmission line carrying 500 A is hung from grounded metal towers by ceramic…
A:
Q: A 2.00-nF capacitor with an initial charge of 5.20 µC is discharged through a 2.32-k resistor. (a)…
A: Capacitor ( C ) = 2 nF Charge ( q ) = 5.20 μC Resistor ( R ) = 2.32 kΩ
Q: In Figure, suppose the switch has been closed for a time interval sufficiently long (steady state)…
A: When the switch is closed then, current flows in the circuit. R1 and R2 are in series so the equal…
Q: A capacitor of capacitance C = 7.5 μF is initially uncharged. It is connected in series with a…
A: C = 7.5 micro farad R = 11500 ohm potential difference produced by the battery (V) = 110 volts
Q: We have a current given by the function I(t)=7.6e^(-5.8t) and it passes through a resistor with a…
A:
Q: Consider a resistor of resistivity 1.59x10^-8 ohms•m. If an electric field of 19 V/m is applied…
A: Let the resistivity of the material of the resistor ρ, the electric field applied on its ends be E,…
Q: ften rated in "ampere-hours" or A-h. (a) Show that A-h has units of “charge” (like coulombs).…
A: Car batteries are often rated in "ampere-hours" or A-h
Q: A 2.00-nF capacitor with an initial charge of 4.58 μC is discharged through a 1.33-kf resistor. (a)…
A:
Q: A 205-kV power transmission line carrying 500 A is hung from grounded metal towers by ceramic…
A: Given data: The voltage is V=205 kV. The current is I=500 A The resistance is R=1.40×109 Ω
Q: charge of 4.71 µC is discharged through a 1.45-kΩ resistor. (a) Calculate the current in the…
A:
Q: Consider a portion of a cell membrane that has a thickness of 7.50 nm and 1.8 pm x 1.8 pm in area. A…
A:
Q: 2.00-nF capacitor with an initial charge of 5.22 μC is discharged through a 1.36-k resistor. (a)…
A:
Q: When a charge Q moves through a potential difference V, the value QV gives the energy transferred.…
A: Write the given data. R=330 OhmV=220 Volts
Q: A 2.00-nF capacitor with an initial charge of 4.31 µC is discharged through a 2.88-kN resistor. (a)…
A: Solution:-Given thatCapacitance (C)=2 nF=2×10-9 FInitial charge (q∘)=4.31μC=4.31×10-6 CResistance…
Q: A 6μF capacitor that is initially uncharged is connected in series with a resistor and an emf source…
A: Given: capacitance, C = 6μF Emf, V = 40 V Electrical energy rate, P = 20 W Time constant, τ = 30 μs…
Q: (a) What energy is dissipated by a lightning bolt having a 21,800 A current, a voltage of 110 MV,…
A:
Q: Consider the circuit shown in the figure, where the power received by the resistor R is 12.5 W. What…
A:
Q: Calculate the effective resistance (in ko) of a pocket calculator that has a 2.10 V battery and…
A:
Q: AR = 40 N resistor has a power rating of 10 W. This means that if the electrical power deliv- ered…
A: Recall P=I2R=V2/R=power dissipated in resisitor.
Q: (a) In the figure what value must R have if the current in the circuit is to be 1.1 mA? Take ɛ1 =…
A: Given data: The circuit current is i=1.1 mA. The emf is ε1=3.0 V. The emf is ε2=4.3 V. The…
Q: A 6-mF capacitor is charged to 12 V and then connected across a 100 W resistor. Find (a) The…
A:
Q: An electric circuit has a battery with an EMF of 1.50 V. Its positive terminal is connected to its…
A: The drift velocity in the copper wire is 1.95×10-3 m/s.
At a particular point in a material with resistivity r the current density has magnitude J. Show that the power per unit volume dissipated at this point is (J^2)r.
Step by step
Solved in 3 steps
- A 2.00-nF capacitor with an initial charge of 5.81 µC is discharged through a 1.56-kΩ resistor. (a) Calculate the current in the resistor 9.00 µs after the resistor is connected across the terminals of the capacitor. (Let the positive direction of the current be define such that dQ dt > 0.) mA (b) What charge remains on the capacitor after 8.00 µs? µC (c) What is the (magnitude of the) maximum current in the resistor? AA 2.00-nF capacitor with an initial charge of 4.01 µC is discharged through a 1.02-kn resistor. (a) Calculate the current in the resistor 9.00 us after the resistor connected across the terminals of the capacitor. (Let the positive direction of the current be define such that > 0.) mA (b) What charge remains on the capacitor after 8.00 us? (c) What is the (magnitude of the) maximum current in the resistor?A 2.00-nF capacitor with an initial charge of 5.69 μC is discharged through a 1.07-k resistor. (a) Calculate the current in the resistor 9.00 µs after the resistor is connected across the terminals of the capacitor. (Let the positive direction of the current be define such that. mA (b) What charge remains on the capacitor after 8.00 µs? μC (c) What is the (magnitude of the) maximum current in the resistor? > 0.)
- (a) What energy is dissipated by a lightning bolt having a 21,000 A current, a voltage of 121 MV, and a time duration of 1.00 ms? (b) What mass of tree sap could be raised from 18.0°C to its boiling point and then evaporated by this energy, assuming sap has the same thermal characteristics as water with a specific heat of 4184 J/(kg · °C) and a latent heat of vaporization of 2256 x 103 J/kg? kgA 2.00-nF capacitor with an initial charge of 5.27 µC is discharged through a 2.47-k2 resistor. dQ (a) Calculate the current in the resistor 9.00 µs after the resistor is connected across the terminals of the capacitor. (Let the positive direction of the current be define such that > 0.) dt (b) What charge remains on the capacitor after 8.00 µs? (c) What is the (magnitude of the) maximum current in the resistor? AConsider a circuit consisting of a battery with an emf ε and an internal resistance of r connected in series with a resistor R and a capacitor C. Show that the total energy supplied by the battery while charging the battery is equal to ε2 C .
- you are working on a lab was given a task by your superbisor to determine the density of the mayerial which he wanted use in a circuit. Material he was given was very skinny wire with a mass of 0.001kg length of 2.3 x 10^3 m and having a resistance of 2.71 x 10^6 ohm. Knowing the resistivity of the material as 2.44 x 10^-8 ohms*m determine the density of the material(a) In the figure what value must R have if the current in the circuit is to be 1.3 mA? Take ₁ = 2.7 V, 8₂-5.3 V, and r₁ r2 = 3.9 Q. (b) What is the rate at which thermal energy appears in R? www.i R (a) Number (b) Number ww MI -48₂ i N Units Units <