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Electric Circuits
A positive charge Q1=8nC is at the origin, and a second positive charge Q2=12nC is on the x-axis at x=4m. Find:
(i) the net electric field at a point P on the x-axis at x=7m.
(ii) the electric field at a point Q on the y-axis at 3m due to the charges.
(i) the net electric field at a point P on the x-axis at x=7m.
(ii) the electric field at a point Q on the y-axis at 3m due to the charges.
Electric Circuits
Test 2
Determine the maximum power that can be generated from an 18-V emf using any combination of a 6.0-Ohms resistor and a 9.0-Ohms resistor.
Determine the maximum power that can be generated from an 18-V emf using any combination of a 6.0-Ohms resistor and a 9.0-Ohms resistor.
Electric Circuits
Test 2
A 200-V battery is connected to a 0.50-uF parallel-plate air filled capacitor.Now the battery is disconnected, with care taken not to discharge the plate. Some Pyrex glass is then inserted between the plates,completely filling up the space.What is the final (a) potential difference (b) electric field between the plates?
A 200-V battery is connected to a 0.50-uF parallel-plate air filled capacitor.Now the battery is disconnected, with care taken not to discharge the plate. Some Pyrex glass is then inserted between the plates,completely filling up the space.What is the final (a) potential difference (b) electric field between the plates?
Electric Circuits
Three identical coils, each of resistance 10 ohms and inductance 42 mH are connected to a 415 V , 50 Hz , 3-phase supply. Determine the total power dissipated when the loads are connected in a star-connected system
Electric Circuits
Why electron-hole pair is concerned only with semiconductors and not with metals(conductors)? As electron leaves atoms(positively charged) in both SC and metals.
Electric Circuits
A resistor develops 15w of power when connected to a 12 v battery. Calculate the amount of charge passing through the resistor in one minute.
Electric Circuits
A 3.50 Ω resistor is connected in parallel with a 0.830 m length of uniform resistance wire, of cross-sectional area 2.09 ×10^-9 m^2. When a power supply is connected, the p.d across the parallel combination is 5.00 V and the total current through the resistor and the resistance wire is 4.11A.
1) determine the current flowing through the resistance wire.
2) determine the resistivity of the resistance wire.
1) determine the current flowing through the resistance wire.
2) determine the resistivity of the resistance wire.
Electric Circuits
A 44mH inductor is connected to 220v, 50Hz ac supply. Determine the rms value of the current in the circuit
Electric Circuits
A battery of e.m.f 12V supplies a current of 5A for 2 minutes. How much energy is supplied in this time?
Electric Circuits
A 3.50 Ω resistor is connected in parallel with a 0.830 m length of uniform resistance wire, of cross-sectional area 2.09 ×10^-9 m^2. When a power supply is connected, the p.d across the parallel combination is 5.00 V and the total current through the resistor and the resistance wire is 4.11A.
1) determine the current flowing through the resistance wire.
2) determine the resistivity of the resistance wire.
1) determine the current flowing through the resistance wire.
2) determine the resistivity of the resistance wire.
