Answer:
Explanation:
Current in a wire is 120mA
I = 120mA = 120 × 10^-3 A
I = 0.12 A
If the voltage applied at across the wire is tripled
From ohms law
V=IR
R = V / I
Since R is constant
Then,
V / I = K
Then, we can say
V / I = V' / I'
Given that,
Initially
V = V and I = 120mA
Then, V' = 3V and I' =?
So,
V / I = V' / I'
V / 120 = 3V / I'
Cross multiply
V × I' = 120 × 3V
Divide both sides by V
I' = 120 × 3V / V
I' = 360mA
So, the current in the wire when the voltage was tripled is 360mA, the current was also tripled
If the voltage in a circuit is tripled while the resistance remains unchanged, according to Ohm's Law, the new current will be triple the original, resulting in a new current of 0.36 amps.
The question deals with electrical current in a circuit, and specifically what happens to the current if the voltage across the circuit is changed. According to Ohm's Law, which states that current (I) is equal to voltage (V) divided by resistance (R), I = V/R, the current in a circuit will increase if the voltage is increased and the resistance remains constant. Given that the original current is 120.0 milliamps, if the voltage is tripled and the resistance remains unchanged, the new current will be 120.0 mA x 3, which equals 360.0 milliamps or 0.36 amps.
To be Answered in Sentences...
1. How does the equivalent resistance of a series circuit compare to the resistance values of the individual resistances in the circuit?
2. In a series circuit, one of the resistors is replaced with a resistor having a lower resistance value. How does this affect the current in the circuit?
Answer:
1. The equivalent resistance for the combination of resistors in series is equal to the algebraic sum of all its individual resistances.
2. The Current will increase and causes it to have less restriction.
Explanation:
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Answer:
1. The parallel circuits can depend on more than that of of individual resistances can. You have only six resistors available, and all of the resistors have a value of 10.0
2. The equivalent resistance of a set of resistors in a series connection is equal to the algebraic sum of the individual resistances. Figure 10.3. 2: (a) Three resistors connected in series to a voltage source. (b) The original circuit is reduced to an equivalent resistance and a voltage source
Explanation: