Complete question:
In the circuit shown in the figure below (See image attached), suppose that the value of R1 is . To obtain a multimeter reading of 1 V between points B and C in the circuit, the value of R2 would have to be.
Answer:
Explanation:
First, we are going to the find current trough the circuit, because the resistors are on series the current is the same on each resistor so I=I1=I2. The Ohm's law for the circuit is:
(1) , with V the voltage of the battery (6V), I the current trough the circuit and the total resistance of the circuit, but for resistors on series the total resistance is the sum of the individual resistance so (2).
Using (2) on (1) and solving for I:
(3)
Ohm's law is true for the individual resistors too so we're going to apply that on R2:
, but remember I2=I
(4), using (3) on (4)
, solving for R2:
, V2= 1V because we want that reading on the multimeter.
Answer:
True b and c
Explanation:
In an RLC circuit the impedance is
examine the different phrases..
a) False. The maximum impedance is the value of the resistance
b) True. Resonance occurs when
(wL)² + (1 / wC)² = 0
w² = 1 / LC
c) True. In resonance the impedance is the resistive part and the power is maximum
d) False. In resonance the inductive and capacitive part cancel each other out
e) False. The impedance is always greater outside of resonance, but at the resonance point they are equal
<span>D. Mass equals weight times acceleration due to gravity.
choose
</span>
The density of silver is
Explanation:
The density of an object is given by the following equation:
where
d is the density
m is the mass of the sample
V is its volume
For the sample of silver in this problem, we have:
m = 2500 g (mass)
(volume)
Therefore, the density of silver is:
Learn more about density:
brainly.com/question/5055270
brainly.com/question/8441651
#LearnwithBrainly
Answer:
it will reduce by 4
Explanation:
From Coulomb's law,
Force is inversely proportional to distance of separation between the centre of the two charges.
when d is doubled, the force between q and -q will reduce by a factor of 4 same also applies to the force on Q and any of q or -q