Table of Contents
- 1 How much current is in a circuit that includes a 9 volt battery and a bulb with resistance of 3 ohms?
- 2 What is the formula of series circuit?
- 3 What is the effect on the current in a series circuit when both the voltage and resistance are cut in half?
- 4 How would you find the resistance of a parallel circuit with n identical resistors?
How much current is in a circuit that includes a 9 volt battery and a bulb with resistance of 3 ohms?
Explanation: so 9/3=3 current is 3 amperes.
What is the effect on the electric current in the circuit if the voltage is doubled?
The current is directly proportional to the voltage and inversely proportional to the resistance. Any alteration in the voltage will result in the same alteration of the current. So doubling or tripling the voltage will cause the current to be doubled or tripled.
What is the formula of series circuit?
The total resistance of a series circuit is equal to the sum of individual resistances.” To calculate the total resistance we use the formula: RT = R1 + R2 + R3.
How much current is in a circuit that includes 9 volt battery and a bulb with a resistance of 4.0 ohms?
How many ohms of resistance must be present in a circuit that has 120 volts and a current of 10 amps? 9. An alarm clock draws 0.5 A of current when connected to a 120 volt circuit. Calculate its resistance.
What is the effect on the current in a series circuit when both the voltage and resistance are cut in half?
Voltage is directly proportional to Current. If the voltage is cut in half, the current is cut in half. The bulb connected to the 220V source will have a greater current.
What is the effect on the current in a simple circuit if both the voltage and the resistance are reduced by half?
Inew = 144 mA (Current is directly proportional to voltage; a tripling of the voltage will triple the current. But current is also inversely proportional to the resistance; a halving of the resistance will double the current.
How would you find the resistance of a parallel circuit with n identical resistors?
If the resistors in parallel are identical, it can be very easy to work out the equivalent resistance. In this case the equivalent resistance of N identical resistors is the resistance of one resistor divided by N, the number of resistors.
What is a series parallel circuit?
In a series circuit, all components are connected end-to-end, forming a single path for electrons to flow. In a parallel circuit, all components are connected across each other, forming exactly two sets of electrically common points.