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How the cells of same emf can be connected to get large value of emf?
They are connected in 'series', the negative terminal of one cell connected to the positive terminal of the next cell, and so on with as many cells as you have, so that there is only one path for current through the entire combination of cells. In this configuration, the EMF of the combination is the sum of the individual EMFs, but the combination can't deliver any more current (amperes) than any single cell can.
A 9.0 volt battery is connected to a 4.0-ohm and 5.0-ohm resistor What is the current in the circuit?
If a 9.0 volt battery is connected to a 4.0-ohm and 5.0-ohm resistor connected in series, the current in the circuit is 1.0 amperes. If a 9.0 volt battery is connected to a 4.0-ohm and 5.0-ohm resistor connected in parallel, the current in the circuit is 0.5 amperes.
What is the resistance in a discman if it is connected to an 8.6V battery and draws a current of 0.9 Amperes?
I have no idea
What is the movement of electricity?
Electricity moves through a circuit in a continuous loop, flowing from the power source (such as a battery or outlet), through wires or conductors, to the load (such as a light bulb or appliance), and then back to the source. This movement of electricity is driven by the potential difference, or voltage, between the positive and negative terminals of the source.
What is the current in a copper wire that has a resistance of 3 ohms and is connected to a 9-volt electrical source?
3 amperes. Ohm's law: Voltage is ohms times amperes.
What must an ammeter be connected to?
To a very small resistance so a mv can be measured as a function of amperes.
What is the current in a 12-volt circuit with a 6-ohm resistor connected series?
2 A (amperes)
Explain why you never touch both terminals at the same time when working on a car battery?
I can be a shocking experience. When someone grabs both terminals, they are completing the electrical loop. It's not the voltage that will get you, it is the Amperes. Electricity always follows the path of least resistance.
How much current and circuit that includes a 9- volt battery and a bulb with a resistance of 3 ohms?
A resistance of 3 ohms connected between the terminals of a 9-volt battery will result in a current of 3 Amperes. If the battery is one of those little ones with snaps on top, it may be able to produce 3 amperes of current for about 3 seconds before it rolls over and totally dies.
What is 1000 ohms?
"1,000 ohms" is the resistance of anything through which the current, expressed in amperes, is numerically equal to 0.001 times the potential difference between its terminals, expressed in volts.
What is the flow of electricity charge?
it is the rate at which electric charges pass though a conductor. The charged particle can be either positive or negative. In order for a charge to flow, it needs a push (a force) and it is supplied by voltage, or potential difference. The charge flows from high potential energy to low potential energy.
What is the instrument used for electrical current?
An Ammeter is used to measure electrical current, which is measured in Amperes (or Amps).
