(II) An RC series circuit contains a resistor R = 15 kΩ, a capacitor C = 0.30 μ F, and a battery of emf E = 9.0 V . Starting at t = 0, when the battery is connected, determine the charge Q on the capacitor and the current I in the circuit from t = 0 to t = 10.0 ms (at 0.1-ms intervals). Make graphs showing how the charge Q and the current I change with time within this time interval. From the graphs find the time at which the charge attains 63% of its final value. C E , and the current drops to 37% of its initial value. E / R .
(II) An RC series circuit contains a resistor R = 15 kΩ, a capacitor C = 0.30 μ F, and a battery of emf E = 9.0 V . Starting at t = 0, when the battery is connected, determine the charge Q on the capacitor and the current I in the circuit from t = 0 to t = 10.0 ms (at 0.1-ms intervals). Make graphs showing how the charge Q and the current I change with time within this time interval. From the graphs find the time at which the charge attains 63% of its final value. C E , and the current drops to 37% of its initial value. E / R .
(II) An RC series circuit contains a resistor R = 15 kΩ, a capacitor C = 0.30 μF, and a battery of emf
E
=
9.0
V
. Starting at t = 0, when the battery is connected, determine the charge Q on the capacitor and the current I in the circuit from t = 0 to t = 10.0 ms (at 0.1-ms intervals). Make graphs showing how the charge Q and the current I change with time within this time interval. From the graphs find the time at which the charge attains 63% of its final value.
C
E
, and the current drops to 37% of its initial value.
E
/
R
.
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During an experiment to verify Ohm's law, the voltage supplied and the current through a circuit are measured.
[Voltage is measured in Volt (V) and current in Ampere (A)].
ww
R
on
Battery
The measured value of the current is I = 3.1 ± 0.2 A and that of the voltage is V = 14 0.5 V. The resistance of
the circuit (in N) can be calculated using the formula, R = V/I,
Calculate the,
a) Resistance (in 2) =
b) Fractional uncertainty in the resistance =
c) Absolute uncertainty (in 2) in the resistance=
(b) Consider a particular phone that has a battery rated at 2.500 mAh. The battery operates at a potential difference of 3.90 V. How much energy, in units of kilowatt-hours, is stored in
a fully charged battery?
0.975-2
✓kWh
(c) If electricity costs $0.16 (or 16.0 cents) per kilowatt-hour, what is the value of the total amount of energy stored in this battery? Express your answer in cents (or 0.01 of a dollar).
How can you relate the energy from part (b) to the cost per kilowatt-hour to find the total cost?
(d) When the phone is idle (that is, turned on but not making calls or texts, using GPS, or running any power-hungry apps), it will operate continuously for 32.2 hours from a fully
charged battery, until the battery runs out. How much average current does the phone draw while idle? Express your answer in milliamperes,
MA
(6) Suppose two electrical resistors with resistance R₁> 0 and R₂ > 0 are wired in parallel
in a circuit:
R₁
ww
R₂
1
1
1
+
Then the combined resistance R, measured in ohms (2), is given by
R R₁ R₂
ƏR
ƏR
(a) Find and after solving for R (e.g., R= ...).
ƏR₁ ƏR₂
(b) Describe how an increase in R₁ with R₂ held constant will change R. (Will R increase
or decrease?)
(c) Describe how a decrease in R₂ with R₁ held constant will hange R. (Will R increase
or decrease?)
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
What is Electromagnetic Induction? | Faraday's Laws and Lenz Law | iKen | iKen Edu | iKen App; Author: Iken Edu;https://www.youtube.com/watch?v=3HyORmBip-w;License: Standard YouTube License, CC-BY