The greater the resistance in a series circuit, the lower the current (current is inversely proportional to resistance). The greater the battery p.d. in series circuit, the larger the current
AI Customer ServiceThe amount of current that flows in a circuit depends on the resistance of that circuit and the emf (or voltage) of the the power supply. The greater the resistance, the lower the current that can
AI Customer ServiceConservation of charge - the current provided by the battery must be the same as the current flowing in the wire. Conservation of energy - the rate at which the wire is heated can''t be any greater than the rate at which the chemical reactions
AI Customer ServiceThe greater the rate of charge transport (current) the greater the kinetic energy of the charge. A higher voltage means more work is done per unit charge by the voltage in
AI Customer ServiceA bigger current means that the imaginary ''tube'' of electrons that flows past a point in one second is longer, and so there are more electrons in it. The more electrons we''re considering, the greater the rate of heating. This tube of
AI Customer ServiceThe greater the battery voltage (i.e., electric potential difference), the greater the current. And the greater the resistance, the less the current. Charge flows at the greatest rates when the
AI Customer ServiceFor a real battery, with an internal resistance, you can think of it as an ideal voltage source (that will always stay at 10V) and an internal resistor R1. The greater the
AI Customer ServiceCells and batteries supply direct current ((dc)). This means that in a circuit with an energy supply from a cell or battery, the current is always in the same direction in the circuit.
AI Customer ServiceThe current in a series circuit depends upon the number of cells. If you make the cells face in the same direction, the more cells you add, the greater the current.
AI Customer ServiceThe greater the battery voltage (i.e., electric potential difference), the greater the current. And the greater the resistance, the less the current. Charge flows at the greatest rates when the battery voltage is increased and the resistance is
AI Customer ServiceA bigger current means that the imaginary ''tube'' of electrons that flows past a point in one second is longer, and so there are more electrons in it. The more electrons we''re considering, the
AI Customer ServiceThe battery will now deliver more current to compensate for the losses. This means, in the earlier example, that the current will increase to 210A. This makes the system inefficient because we
AI Customer ServiceWhen the resistors are connected in series to a 12.0-V battery, the current from the battery is 1.07 A. When the resistors are connected in parallel to the battery, the total
AI Customer ServiceA battery is connected to a 10 resistor as shown. The e.m.f. (electromotive force) of the battery is 12V. (a) (i) Explain what is meant by the e.m.f. of a battery. The EMF is the energy provided
AI Customer ServiceThe term ''battery'' generally means ''a row of'' as in a battery of guns or battery hens. A battery is a row of cells. The typical automotive battery of 12 volts is made from six
AI Customer ServiceCells and batteries supply direct current ((dc)). This means that in a circuit with an energy supply from a cell or battery, the current is always in the same direction in the circuit.
AI Customer ServiceThe chemicals in a battery litterally strip charge away from one terminal and deposite charge on the other. In general, the more surface area the chemicals have to deposit
AI Customer Service3 天之前· If the polarity of the battery connected to the wire is reversed, then the direction of current through the conductor is also reversed ie., current will now flow from top to bottom and the direction of magnetic field lines will also be
AI Customer ServiceThe current in a circuit is directly proportional to the electric potential difference impressed across its ends and inversely proportional to the total resistance offered by the external circuit. The greater the battery voltage (i.e., electric
AI Customer ServiceYes, parallel batteries "can" supply twice the current when the load is less than the ESR of the battery. ( As shown above, for short circuit current, it is twice.) But otherwise,
AI Customer ServiceQuestion: Compared to the amount of current that flows from a battery and into a circuit, the amount of current that returns to the battery isthe same.less.greater pendent on the internal
AI Customer ServiceA battery of e.m.f. 7.3 V and internal resistance r of 0.3 Ω is connected in series with a resistor of resistance 9.5 Ω. Determine: a) The current in the circuit. b) Lost volts from
AI Customer ServiceThe simplest complete circuit is a piece of wire from one end of a battery to the other. An electric current can flow in the wire from one end of the battery to the other, but nothing useful happens.
AI Customer ServiceThe greater the rate of charge transport (current) the greater the kinetic energy of the charge. A higher voltage means more work is done per
AI Customer ServiceCurrent is the amount of charge that is flowing through a component per unit of time. For a given voltage, Ohm''s law tells us that if we increase the resistance, then the current must decrease.
AI Customer ServiceA battery of e.m.f. 7.3 V and internal resistance r of 0.3 Ω is connected in series with a resistor of resistance 9.5 Ω. Determine: a) The current in the circuit. b) Lost volts from the battery
AI Customer ServiceThe chemicals in a battery litterally strip charge away from one terminal and deposite charge on the other. In general, the more surface area the chemicals have to deposit
AI Customer ServiceThe current in a series circuit depends upon the number of cells. If you make the cells face in the same direction, the more cells you add, the greater the current.
AI Customer ServiceThe greater the battery voltage (i.e., electric potential difference), the greater the current. And the greater the resistance, the less the current. Charge flows at the greatest rates when the battery voltage is increased and the resistance is decreased.
The amount of current that flows in a circuit depends on the resistance of that circuit and the emf (or voltage) of the the power supply. The greater the resistance, the lower the current that can flow through the circuit, the greater the voltage of the power supply, the greater the current for a fixed value of resistance.
The current in the circuit decreases. The potential difference of the cell decreases. The resistance of the circuit decreases. Q3. In a series circuit, there is a particular type of relationship between current and total resistance: the current is proportional to the total resistance, if the p.d. stays the same.
Current is defined as the rate of flow of charge, and can be thought of as the amount of charge that passes a point in a circuit per unit of time, It is defined by the equation: Where: It is important to note that it is the change in charge, ΔQ in time Δt, not the total charge.
More collisions means it takes longer for the charge to 'get through' the component. The charge is moving slower and so the current is lower. Or, is it that the speed is always the same and that somehow if we have more resistance then it means there is just less charge able to flow, hence a lower current. If so, why?
Just FYI, more voltage does not always mean more current. Most conductors obey Ohm's Law, which says that the current along the length of a conductor will be proportional to the voltage between the two ends of it, but when you throw active circuit elements into the mix, other things can happen.
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