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-- The resistance of the wire is proportional to its length.
-- When the length is reduced by 1/2 , the resistance is also reduced by 1/2 .
-- Reducing the resistance across the battery by 1/2 causes the current to double.
-- The new current is 100 mA.
(Assumes zero internal resistance in the battery, and that the 4.5 volts doesn't 'sag'.)
What else can I help you with?
When wires are connected to the terminals of the battery what causes electric current in the circuit?
The voltage (V) between its terminals. ~Gabby
How does placing batteries in parallel boost the total voltage?
Placing batteries in parallel increases the total voltage because the positive terminals are connected together and the negative terminals are connected together, which allows the voltage of each battery to add up.
What is the voltage when batteries are connected in parallel?
When placing voltage sources in parallel, the total voltage is the same as the individual battery's voltages. For example: If I was to place 4 "AA" 1.5 volt batteries in parallel with a life of x hours, the out put would be 1.5 volts with a life of 4x hours. note: never place batteries in parallel that are not in the same condition (charge, voltage, ect...).
Why voltage measured at terminals of battery to which load is connected is always lower than open circuit voltage?
Real-world batteries do not have zero internal resistance. When one connects a load (resistance) to a battery, current begins to flow and the open-circuit potential is divided between the battery's internal resistance and the resistance of the load. Thus, one will measure a lower voltage at the battery terminals when a load is connected, compared to no-load conditions.
What two factors determine the output energy of a battery?
The energy delivered by a battery would depend on-- the battery's voltage-- the resistance of the load connected across its output terminals-- the length of the time the load is connectedThe power delivered by the battery is [ (voltage)2 divided by (load resistance) ].The total energy delivered by the battery is [ (power) multiplied by (time the load is connected) ].
What does a battery create between terminals?
Potential difference (voltage)
What is the driving force for the flow of electricity in battery's?
The driving force for the flow of electricity in a battery is the potential difference, or voltage, between the positive and negative terminals. When a circuit is connected, this voltage pushes electrons from the negative terminal to the positive terminal, creating an electric current.
How do you reset the computer on 2002 Chevy Trailblazer?
disconnect both terminals from the battery, then touch the terminals together, not connected to the battery, voila! you're done.
What is the total voltage of batteries connected in parallel?
When batteries are connected in parallel, the total voltage remains the same as the voltage of a single battery.
When the wires are connected to the terminals of the battery what causes electric currents in the circuit?
The energy stored in the chemicals of the battery
Is it possible to have electrical voltage exist but no electric current exist?
Yes. For example, a car battery always has a voltage of 12V (unless it gets completely unloaded, of course), between its terminals. But a current will only flow if cables are connected.
Does miliamperes increase as does battery voltage when put in a series configuration?
The current in a circuit, expressed in milliamperes, is1,000 x (battery or power supply voltage)/(resistance connected between the power supply terminals)If you increase the voltage of the battery or power supply, the current in the circuitincreases proportionally, at least until something in the circuit gets hot, melts, fuses,and opens the circuit.
