The Electrical resistivity (p) of a material is inversely proportional to the length (L) of the material Select one: O True O False
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- 1.1 Given the circuit in Figure 1, using Kirchoffs voliage law show that: jwME, Ez R1 + jwl1 R, R Figure 1 1.2 A ferromagnetic ring of cross-sectional area 800 mm and of mean radius 170 mm has two windings connected in series, one of 500 turns and one of 700 turns. If the relative permeability is 1200, calcula:e the self-inductance of each coil and the mutual inductance of each assuming that there is no flux leakage.What is the unit of the product of inductance and capacitance? A. second B. square of second C. 1/second D. 1/second2H:10) Connect a battery to a solenoidA cylindrical solenoid 40 cm long with a radius of 2 mm has 300 tightly-wound turns of wire uniformly distributed along its length (see the figure). Around the middle of the solenoid is a two-turn rectangular loop 3 cm by 2 cm made of resistive wire having a resistance of 195 ohms. One microsecond after connecting the loose wire to the battery to form a series circuit with the battery and a 20 resistor, what is the magnitude of the current in the rectangular loop and its direction (clockwise or counter-clockwise in the diagram)? (The battery has an emf of 9 V.) ................A clockwise counter clockwise
- OSSecO A current Ip5A flows through long regular wire in emty space. an infinitely It square perimerer with a side length of 3 [cm] at A Second distance of d=4Ecm] from the eurrent On +he same plane with this current ldirection is giver in the figure J are awailable. Caleulate the enductance L42 as EuH].16 If permittivity E is independent of the magnitude of E, then the material is said to be because D andE are related linearly, and if it is independent of the direction of E, the material is said to be non linear, linear linear, isotropic isotropic, linear conservative, linear isotrpic, ideal4. Find the net potential (voltage) at pt. p produced by the charges as shown in the figure. Q8= +1uC Q3=-6nC Q4=-3nC 1m pt.p Q2=+5nC Qs=-5nC 1m 2m 2m Qı=+3nC Q6=+6nC Q7=+1nC
- Figure shows a circuit and a conducting rod. A conducting rod moves with a constant velocity vperpendicular to a circuit with a current I=2.82sin(??)A hollow conductor us at a potential V. The potential at any point inside the hollow is,What is a dielectric material, and what does it do? a. What are 3 ways capacitance can be increased by changing the materials?