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Great Assignment Help Questions

An ideal battery sends a current of 5A in a resistor. When another resistor of value 10Ω is connected in parallel, the current through the battery is increased to 6A. find the resistance of the first resistor.

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Posted: 19-08-2022

A constantan wire of length 50 cm and 0.4 mm diameter is used in making a resistor. If the resistivity of constantan is 5 × 10-7 m, calculate the value of the resistor.

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Posted: 18-08-2022

For safety, the circuit for a 3 kW metal-bodied electric kettle is both earthed and contains a fuse.

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Posted: 18-08-2022

Imagine you have a brother two years younger than you are. Explain to him why:

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Posted: 18-08-2022

A student designs the circuit shown in Figure 3.30 in order to try to test Ohm’s law.

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Posted: 18-08-2022

A tungsten resistor (α = 5.8 × 10−^3 K−1) with a value of 10.0 Ω at 0 °C is warmed from that temperature up to 150 °C.

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Posted: 18-08-2022

A common flashlight bulb is rated at 0.30 A and 2.9 V (the values of the current and voltage under operating conditions). If the resistance of the tungsten bulb filament at room temperature (20∘C) is 1.1Ω, what is the temperature of the filament when the bulb is on?

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Posted: 18-08-2022

A single electron has a charge of 1.6 × 10–^19 C.

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Posted: 18-08-2022

A current of 2 A flows for 30 seconds through a lamp. How much charge has moved?

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Posted: 18-08-2022

Charge flows along a wire at rate of 3 A. How many coulombs of charge will pass a given point in the circuit in:

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Posted: 18-08-2022

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