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Yes. While it isn't clear what device you are talking about, and different devices have different characteristic curves (for example, a straight line for a resistor), a voltage is required for a current to flow, so if there is no voltage, there won't be any current, either.
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A short piece of metal that melts when a large current passes through it is a?
Fuse
Does current flow through wires?
It will flow if there is a voltage. Basically, that implies there is an electric field that attracts or repels charged particles.It will flow if there is a voltage. Basically, that implies there is an electric field that attracts or repels charged particles.It will flow if there is a voltage. Basically, that implies there is an electric field that attracts or repels charged particles.It will flow if there is a voltage. Basically, that implies there is an electric field that attracts or repels charged particles.
What does electricity change into when it passes through the water?
if we add some sulphuric acid or NaOH and then pass electricity through the water, then electrolysis of water takes place and hydrogen and oxygen gases are formed.
What makes the current flow in a circuit?
Electricity can be defined as the flow of negatively charge particles, called electrons. This flow is only possible in conductors (ex. metals) but not in insulators (ex. glass). As the electrons flow, they have to overcome frictional forces. Friction produces heat. The more friction that is encountered, the more heat is generated. So the current passes quite easily through the copper conductors, generating very little heat. As it reaches the load (heater, lamp etc), the resistance is greater so the bulk of the heat is generated here. Electrical energy is being converted to thermal energy.
When a shipping lane passes from one large body of water to another it often passes through a .?
bay
Why must the instantaneous current wave be exact 90 degree out-of phase with the applied voltage waveform across an ideal inductor?
Because the voltage induced is proportional to the rate of change of current, and the maximum rate of change of current occurs at the point where the current waveform is 'steepest' -i.e. as it passes through zero. So, as the current passes through zero, the corresponding value of induced voltage is maximum, which means the voltage and current waveforms are displaced by a quarter of the wavelength, or 90 degrees.
Why voltage leads in Inductor?
Maximum induced voltage occurs when the current is changing at its greatest rate -this occurs when the current passes through zero. Since this voltage acts to oppose current flow, this maximum voltage acts in the negative sense when the current is acting in the positive direction. Since the supply voltage is equal, but opposite, the induced voltage, it is maximum when the current is zero -so leads by 90 degrees.
Why high voltage does not kill?
Its not voltage that kills it is current.High voltage CAN kill, if it can also provide high current (especially if the current comes near the heart as it takes under 1mA to stop the heart which isn't much current).However if the high voltage source is current limited and/or the current only passes through the extremities it is very unlikely to kill.
How is battery voltage related to electrical energy?
Voltage is the amount of energy in each coulomb of charge that passes through the battery. This means that the energy is the voltage times the time-integral of the current. For a constant current: E = V I t Where E = Energy in Joules V = Voltage in Volts I = Current in Amps t = time in seconds
How much current passes through the celling fan?
More information is needed to answer this question. Voltage, type of fan, horsepower of the fan or wattage of the fanareneeded to find what the current draw of the fan.
A line passes through the origin and has a slope of?
which equation has a slope of -1/2 and a graph that passes through (-3,4)?
Does the graph of an inverse variation pass through the origin?
Inverse variation does not pass through the origin, however direct variation always passes through the origin.
Why current lag and potemtial lead in an inductor.?
because of flux produced in coil of inducterAnswerThe potential difference (not 'potential') induced into a pure inductive component is proportional to the rate of change of current. The greatest rate of change of current occurs when the current waveform passes through zero (i.e. is at its steepest angle). So the voltage is maximum when the current is passing through zero -which means that the current is lagging the voltage by 90 degrees.
Does current pass through vacuum?
Usually not, but a high voltage can force electrons from one side to the other. This is done in vacuum tubes. Answer2: Yes. The Electromagnetic Wave passes through vacuums and E = hf = WQf = WI, where I is a current.
What is a straight line that passes through the origin called?
Intersection
what term describes the amount of charge that passes a point in a circuit each second Current Resistance Voltage power?
Current
How current passes through resistor.?
What is the current running through resistor four?1 amps..!What is the current running through resistor one? 3 amps...!What is the current running through resistor three? 2amps..!What is the current running through resistor five? 3 amps..!What is the voltage drop running through resistor five? 45 volts...!What is the equivalent resistance through the parallel portion of the circuit? 6 ohmsAnswerA resistor is a conductor, albeit one with a higher resistance than a length of wire, so current passes through it without any problem. The magnitude of the current will, of course, be somewhat lower because of the additional resistance.
