Question

T = 20 секунд | q = 100 Кл | R = 2 Ом | ____________ U-? |

Answer 1

I=q/t
I=U/R
q/t=U/R
U=qR/t
U=100*2/20=10 (B)

Answer 2

To find the voltage (U) in the given circuit, we can use Ohm's law, which states:

$U = I \times R$

where: U = voltage (in volts) I = current (in amperes) R = resistance (in ohms)

The formula for current (I) is:

$I = \frac{q}{T}$

where: I = current (in amperes) q = charge (in coulombs) T = time (in seconds)

Given values: T = 20 seconds q = 100 coulombs R = 2 ohms

Now, let's calculate the current (I) using the formula:

$I = \frac{q}{T} = \frac{100 \text{ Кл}}{20 \text{ секунд}} = 5 \text{ А}$

Next, we can use Ohm's law to find the voltage (U):

$U = I \times R = 5 \text{ А} \times 2 \text{ Ом} = 10 \text{ В}$

Therefore, the voltage (U) in the circuit is 10 volts.