Answer:
Rate of heat transfer will be 10.69 kw
Explanation:
We have given temperature
From standard table enthalpy of vaporization 2382.75 KJ/kg
Steam is coming out from turbine at rate of 16.154 kg/hour
We have to calculate the rate of heat transfer
Heat transfer is equal to
So rate of heat transfer
=
So rate of heat transfer will be 10.69 kw
(a) The electrical resistance of the wire is determined as 9.27 x 10⁻⁴ ohms.
(b) The current flowing through the wire is 1.1 mA.
<h3>
Electrical resistance of the wire</h3>
The electrical resistance of the wire is determined as follows;
ρ = RA/l
RA = ρL
R = ρL/A
Where;
- A is area of the iron bar
- ρ is electrical resistivity = 1/conductivity = 1/1.0299 x 10⁷ = 9.7 x 10⁻⁸
A = πd²/4
A = π x (0.02)²/4
A = 3.14 x 10⁻⁴ m²
R = (9.7 x 10⁻⁸ x 3)/(3.14 x 10⁻⁴)
R = 9.27 x 10⁻⁴ ohms
<h3>From the chart, voltage after 120 minutes ≈ 1.1 V</h3>
Current, I = V/R
where;
I = 1.1/(1000)
I = 1.1 mA
Learn more about resistance here: brainly.com/question/17563681
#SPJ1
Answer:
1. Current in the circuit; 1.2 Amps
See attached image for the circuit.
2. Equivalent resistor = 3 Ω
I = 0.3 amps
Potential difference across the battery terminals is: 0.9 V
Explanation:
Part 1.
The internal resistance of 2 ohms is simply added to the circuit in series as shown in the attached image.
Since now we have two resistances in series (2 ohms and 3 ohms) the total of this series combination is 5 ohms. Using Ohm's law, we can derive the current running through the circuit:
Part 2.
Now we have a 1.5 V battery with a 2 ohm internal resistance, connected to two identical 6 ohm resistors.
a. The equivalent resistance presented by the two resistors in parallel:
b. Now the circuit can be represented by a 2 ohm resistor (internal battery resistance) plus a 3 ohm parallel equivalent resistor in series. That is a 5 ohm total resistance. Then Ohm's law becomes:
c. The potential difference across the battery terminals must be the battery's EMF minus the potential drop in its internal resistance:
Acceleration I’m pretty sure
Answer:
the graph would lower down if we are talking about speed because the velocity stops going and theres no more kinetic energy to cause any speed
Explanation: