Question
In: Physics
A basic electrical circuit consists of a battery, a light bulb, a switch and wires connecting...
A basic electrical circuit consists of a battery, a light bulb, a switch and wires connecting them. As soon as the switch is closed, even the light bulb is one mile away, the light bulb will be on IMMEDIATELY. This means that the electrical current (made of moving electrons) starts to run everywhere in the wire as soon as the switch is closed.
Explain:
a) the origin of these free moving electrons (where do they come from),
b) the force(s) that pushes free electrons moving towards the same direction (to form electrical current),
c) the average speed of these free electron (when the circuit is closed).
Solutions
genius_generous answered 2 years agoRelated Solutions
A basic electrical circuit consists of a battery, a light bulb, a switch and wires connecting...
A basic electrical circuit consists of a battery, a light bulb,
a switch and wires connecting them. As soon as the switch is
closed, even the light bulb is one mile away, the light bulb will
be on IMMEDIATELY. This means that the electrical
current (made of moving electrons) starts to run everywhere in the
wire as soon as the switch is closed . Explain what happen and the
source(s) of these free moving electrons.
Consider a light bulb connected to a battery with wires. How must the light bulb be...
Consider a light bulb connected to a battery with wires. How
must the light bulb be connected in order for it to light?
Identify the relevant parts of the bulb and battery. Explain,
using the concept of potential difference, why and how your
configuration causes the bulb to light. Do not use the phrase
"complete circuit".
Conceptual: Consider a lightbulb attached to a battery with wires. How must the light bulb be...
Conceptual: Consider a lightbulb attached to a battery with
wires. How must the light bulb be connected in order for it to
light? Identify the relevant parts of the bulb and battery and
explain the concept of
Three identical light bulbs are connected to a 30V battery in a circuit. Bulb A is...
Three identical light bulbs are connected to a 30V battery in a
circuit. Bulb A is on main loop and closest to battery. Bulbs B and
C are in parallel and the junction is after Bulb A S1 is in the
loop with bulb B and S2 is in loop with bulb C
Initially switch 1 is closed and switch 2 is opened. When switch
2 is closed what happens to the brightness of bulbs A,B and C
Please explain
1- A 9 V battery is powering a simple circuit with one light bulb. There is...
1- A 9 V battery is powering a simple circuit with one light
bulb. There is a current of 0.58 running through the bulb and a
voltage drop of 5.8 across the bulb. What is the internal
resistance of the battery?
2- A series circuit uses three resistors. One resistor has a
resistance of 19 Ω. The second resistor has a resistance of 26 Ω.
The final resistor has a resistance of 21 Ω. What is the equivalent
resistance of...
A circuit contains a 120V battery, and a single light bulb whose resistance is 240 Ω....
A circuit contains a 120V battery, and a single light bulb whose
resistance is 240 Ω.
(A) Determine the power dissipated by the single bulb. Assume 5
additional bulbs, all identical to the first bulb are placed in
parallel with each other and the first bulb.
(B) Determine the power dissipated by each bulb.
(C) If a 6.00 A circuit breaker (CB) is placed in series with
the battery in the circuit with the parallel bulbs, will the CB
trip...
Draw a series circuit with a battery, wires, and more than 3 light bulbs. You decide...
Draw a series circuit with a battery, wires, and more than 3
light bulbs. You decide the features: the battery's voltage, the
number of light bulbs, and the resistance in each light bulb.
Answer the following questions regarding your circuit:
1. What is the voltage for each bulb?
2. What is the circuit's resistance?
3. What is the current at any point in the circuit?
Send a picture of it please!
A light bulb, a capacitor, and a nine-volt battery are wired up in series in a simple RC circuit.
A light bulb, a capacitor, and a nine-volt battery are wired
up in series in a simple RC circuit. The light bulb has a
resistance of 2.0 kΩ and the capacitor has a capacitance of 950
μF.(a) What is the electric current in the circuit at the exact
moment the battery is connected (at t = 0)?(b) What is the electric current in the circuit 1 second after
the battery was connected?(c) What is the electric current in the circuit...
A circuit has a 2.9 V battery connected in series with a switch. When the switch...
A circuit has a 2.9 V battery connected in series with a switch.
When the switch is closed, the battery powers two paths in
parallel, one of which has a resistor of resistance R1 = 80 Ω in
series with an inductor of inductance L = 1×10−2 H , while the
other has a resistor of resistance R2 = 230 Ω . What is the current
supplied by the battery at a time t = 0.25 ms after the switch...
How will voltage and current behave in a circuit with two adjacent batteries (battery-battery-bulb-bulb)? How does...
How will voltage and current behave in a circuit with two
adjacent batteries (battery-battery-bulb-bulb)? How does this
change for two non-adjacent batteries
(battery-bulb-battery-bulb)?
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