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Electric Circuits
A 6.0m long wire having a diameter of 2.0 mm has a resistance of 12.2 m ohm. A potential difference of 23V is applied between the ends. Calculate the current in wire, the magnitude of the current density and the resistivity of the wire material
Electric Circuits
Two charges +q and +4q are separated a distance of 2r. Use Gauss’ law to find the electric
field at a distance r around the charge +question and 3r around the charge +q
field at a distance r around the charge +question and 3r around the charge +q
Electric Circuits
Three charges q1 = + 6.0 µC, q2 = + 9.0 µC and q3 = + 12.0 µC are located at (0, 0) m, (0.3, 0) m and (0.3, 0.4) m respectively. Find the electric force on q3 due to q1, q3 due to q2, find the net force on q3. Show results in unit vector notation.?
Electric Circuits
Two charges +q and +4q are separated a distance of 2r. Use Gauss’ law to find the electric
field
field
Electric Circuits
In a circuit , R_1=2.0 Ω,〖 R〗_2=4.0 Ω,R_3=3.0 Ω,〖 R〗_4=6.0 Ω, R_5=12.0 Ω and R_6=2.0 Ω. Calculate the total resistance in the circuit.
Electric Circuits
Three charges q1 = 1 C, q2 = – 2 q1, and q3 = 3 q2 are placed along the x-axis. Charge q2 is at equal distance from other two charges. The charge q1 is at the origin (0, 0) and charge q3 is at (100, 0) cm.
(a) Show the positions of all the charges in a suitable diagram.
(b) Find the magnitude of electric fields E1 and E3 at a point P (50, 0).
(c) Find the magnitude of resultant electric field at P and its direction.
(d) Find the work done in bringing charge q1 to (0, 0) from infinity.
(e) Find the total potential at point P.
(a) Show the positions of all the charges in a suitable diagram.
(b) Find the magnitude of electric fields E1 and E3 at a point P (50, 0).
(c) Find the magnitude of resultant electric field at P and its direction.
(d) Find the work done in bringing charge q1 to (0, 0) from infinity.
(e) Find the total potential at point P.
Electric Circuits
Three charges q1 = + 6.0 µC, q2 = + 9.0 µC and q3 = + 12.0 µC are located at (0, 0) m, (0.3, 0) m and (0.3, 0.4) m respectively. Find the electric force on q3 due to q1, q3 due to q2, find the net force on q3. Show results in unit vector notation.?
Electric Circuits
If an iron wire is drawn to decrease it's radius by 0.5 precent of increase in its resistance will be
Electric Circuits
A wire resistance 18 ohm is drawn until it's radius reduce 1\2 of its original radius then resistance of the wire is
Electric Circuits
A copper wire of cross sectional area 0.01 mm2 is used to prepare a resistance of 1kohm The resistivity of copper is 1.7x10x8the length of the wire is
