A caterpillar of length 4.0 cm crawls in the direction of electron drift along a 5.2-mm-diameter bare copper wire that carries a uniform current of 12 A. (a) What is the potential difference between the two ends of the caterpillar? (b) Is its tail positive or negative relative to its head? (c) How much time does the caterpillar take to crawl 1.0 cm if it crawls at the drift speed of the electrons in the wire? (The number of charge carriers per unit volume is 8.49 * 10^28 m3.)

Q: --------- A silver wire of radius r= 0.5 mm and resistance 0.06 Ω is connected to a voltage source…

A:

Q: Calculate the equivalent resistance across a and b and the current and voltage across the 92…

A: 9Ω (branch df) and 6Ω (branch de) are in parallel, give rise to 9×69+6=3.6Ω. This combination is in…

Q: A hollow cylinder is shown in this figure. When the potential difference (AV = 12 V) is applied…

A:

Q: m/s. It is very smal A current of 1.5 A passes through an aluminium wire of diameter 3mm. What is…

A: Given, Current (I) = 1.5 A  Diameter = 3 mm

Q: Determine the currents I1, I2, and I3. E, = 18 V b. d 0.5 N R2 2.5 Q- I, R, a 6.0 2 I3 R3 1.5 Q 13 f…

A:

Q: Three cylindrical wires are made of the same material. Their lengths and radii are wire 1: length ℓ,…

A:

Q: In Kirchoff's experiment, the current and potential differences are measured. Then J3 is removed.…

A:

Q: The current in a wire varies with time according to the equation I(t) = 6.00 A + (4.80 A/s)t, where…

A: Current in the wire is given by the relation :  I(t) = 6 A + (4.80) t

Q: Find the current in each of the resistors using Kirchhoff's Laws R = 3.00 N R3 = 3.00 N %3D %3D a b…

A:

Q: =9634 Given that the delivered power to a resistor is equal to P when the current flowing in the…

A: solution given as

Q: on the shape m when the plane of the um when the plane of the loop is pe ys zero dependent of the…

A:

Q: 6. If the current I₁ = 3 A, use the potential difference Vab to determine the value of the current…

A:

Q: The current in a wire varies with time t according to the relation: I(t) = 58-3t². where the current…

A:

Q: /hat is the magnitude and direction of the current in the 20 e esistor? 10 Ω 10 V 20 Ω 15 V 10 Ω O…

A:

Q: Two conductors A and B are made of the same А B material and have the same length L and are a…

A:

Q: The graph below represents the relationship between the current in a metallic conductor and the…

A: The slope of current (I) vs potential difference (V) gives the value of . According to Ohm's law,

Q: 4 59% P 8:11 4G Zain JO l. Knowing that current through the 200 Q resistor is zero, the emf E (in V)…

A:

Q: The quantity of charge through a conductor is modeled as  Q = (2.00 mC/s4)t4 − (5.00 mC/s)t + 3.00…

A: Given that, The quantity of charge through a conductor is modeled as Q = (2.00 mC/s4)t4 − (5.00…

Q: A circular wire ring of diameter 20 cm carries a current of 5.0 A directed as indicated in the…

A: given that  current i= 5 Amp diameter =20 cm = 0.20 m radius r= 0.10 m velocity of electron at…

Q: If the current I, = 3 A, use the potential difference Vab to determine the value of the current I2.…

A: From the circuit,

Q: 5.00 2 8.00 2 6.00 V 7.00 V 9.00 V 10.0 2

A:

Q: Two cables of the same length are made of the same material, except that one cable has twice the…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 2.00 Ω 10.00 V a 3.00 N а 1.00 N 5.00 V. 4.00 N 5. Find the current in each branch and the potential…

A:

Q: A copper cable is designed to carry a current of 330 A with a power loss of 5.40 W/m. What is the…

A: SOlution: Given that I = 330 A P =5.4 W/m

Q: R = 60 R3 = 42 Rg = 102 A OW R4 = 82 Rg = 62 ReQ R2 = 82 R10 = 22 Re = 62 Rs = 42 R7 = 82 (Says,…

A: This question is based on combination of resistances.

Q: Two cylindrical wires are cojoined sequentially with one wire twice as thick as the other. If this…

A: Thickness of first wire= 1 mm  Thickness of second wire = 2 mm Current flowing through 1 mm thick…

Q: Taking R = 1.80 kN and &E = 340 V in the figure shown below, determine the magnitude and direction…

A:

Q: A coil of Nichrome wire is 26.0 m long. The wire has a diameter of 0.450 mm and is at 20.0°C. (a) If…

A: Length = 26 m diameter = 0.45 mm T = 20oC

Q: n electron is travelling at 100.0 km/s parallel to a long straight horizontal conductor a distance…

A:

Q: In Kirchoff's experiment, the current and potential differences are measured. Then J2 is removed.…

A: The given circuit is,  In loop2, when J2 is removed then the loop2 becomes open and whatever…

Q: The figure shows wire section 1 of diameter D1 = 5.50R and wire section 2 of diameter D2 = 4.0OR,…

A: Given that ,  For section 1  Diameter ,D1 = 5.50R ; Radius ,r1 = 2.75R  For section 2  Diameter,D2 =…

Q: Pure aluminum is malleable, which means that it can be pounded or stretched into different shapes.…

A:

Q: A long straight wire carrying a current of 3 A passes through the window with a height of 1.5 m and…

A: Given:- The current I = 3 A  The window with the height h= 1.5 m  width of window d= 1 m  Find:- The…

Q: Figure represents a section of a circular conductor of Ag nonuniform diameter carrying a current of…

A: Current density is defined as the total amount of electric current travelling in per unit cross…

Q: Two wires of circular cross section are made of the same metal. Wire 1 has radius rr and length L;…

A: (a) The ratio of resistance of the wire 2 to wire 1 is

Q: In Figure 2, & = 5.00 kV, &2 = 4.50 kV, &z = 3.50 kV, R¡ = 650.0 2, R2 = 450.0 Q, R3 = 540.0 Q, R4 =…

A: for loop 1    0 = ℰ1 + i1*r1 + i2*r3- ℰ2 + i1*r4 = 0    from the figure or mesh analysis it is clear…

Q: 8 - The figure in the attachment represents a section of a circular conductor of nonuniform diameter…

A:

Q: 8. How much charge passes through a wire if 15.0 A of current flows in 5.0 s? а. 3.0 С b. 75 C c.…

A:

Q: The current density in a cylindrical wire of radius 4R is given by J = J.(1 –). Density is parallel…

A: The total current is given by,…

Q: Given a cylindrical conductor of radius 1.50 mm with current density 2.50 A/m² and free- electron…

A:

Q: At what rate is thermal energy generated in the 30 Q resistor given that ɛ = 59 V? 10Ω 302 O a.…

A:

Q: The current in a wire varies with time according to the equation I(t) = 6.00 A + (4.80 A/s)t,…

A:

Q: The figure below represents a section of a circular conductor of nonuniform diameter carrying a…

A:

Q: A high voltage transmission line with a diameter of 2 cm carries a steady current of 980 A. The…

A: Given value--- diameter = 2 cm. current = 980 Amp. free charge density = 8 × 1028 electron/m3.…

Q: The beam, consisting of electrons with constant kinetic energy and uniform density, carries a…

A: Given that, current(I) =  1 mA = 10-³ A cross-sectional area (A)=  ​​23 mm² = 23× 10-⁶m² (1m= 1000…

Q: The Van de Graaf generator includes a metal sphere of radius R electrically isolated from its…

A: Given Current I = 5 μ Α = 5 × 10-6 A  Time taken t = 1.3 sec Potential V = 4 × 102 KV = 4 × 105 V

Q: At what rate is thermal energy generated in the 30 Q resistor given that ɛ = 71 V? 100 30Ω : 5Ω 3.…

A:

Q: 1) A 5.50 m length of 1.9 mm -diameter wire carries a 780 mA current when 23.0 mV is applied to its…

A: Length of wire, L = 5.50 m Radius, r = Diameter/2 = 1.9 X 10-3 / 2 = 0.95 X 10-3 m Current in wire,…

Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.