a copper conductor of radius 3mm with resistance of (4 ohm) with resistivity of a copper is 0.0159 µN.m. find the length of the conductor * O 118.7m O 95.4m O 100m O 111.6m
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- We want to investigate how the field strength will be with air as dielectric and with steatite. A plate capacitor is placed in a 24 kV network between phase and ground. The relative permittivity of air is &=1 and for steatite &-6. The plate capacitor has area = 1m². The distance between the electrodes is 2 mm. Ep = 8.854-10-12 F/m A=1m² d=2mm a) Calculate the maximum field strength in the plate capacitor. (Answer: 9.8kV/mm) b) What is the capacitance of the capacitor if we use steatite? (Answer: C = 26.6nF)6 6 - A dielectric is a material that is: A) a semiconducting B) a nonconducting C) a superconducting D) none of them E) a conductingQuestion A suspension type insulator has three units with self-capacitance C and ground capacitance 0.1C. What will be the string efficiency?
- 10) A certain batch of copper wire was found to have a conductivity of 98% at 20°C. What is its resistivity in un-cm? wwwIdentify the statement from the following when the inductance can have high value. a. All the given options O b. If the number of turns of the wire is more O c. If the length of the wire is longer O d. If the cross-sectional area is lessA two wires, one of Copper and the other of Nickel, if the resistance of the first is (12.7 Q), and the second is (11.6 0) at room temperature, at what temperature are their resistances equal? Note that the temperature coefficient of resistivity of Copper is (0.0039 C-1), and for Nickel it is equal to (0.006 C1).
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