Question 1

Exercises 1 to 6 refer to the same given and figure. Consider the circuit of the adjacent, given $R=100Ω$, $R_1=200Ω$, and $R_2=300Ω$. Calculate the equivalent resistance $R_{eq}$.

Accepted Answer

$R_{eq}=220Ω$.

Answer

$R_{eq}=100Ω$.

Answer

$R_{eq}=180Ω$.

Answer

$R_{eq}=120Ω$.

Question 2

Consider the circuit of the adjacent, given $U_{PN}=22V$, $R=100Ω$, $R_1=200Ω$, and $R_2=300Ω$. Calculate the electric current $I$ delivered by the generator.

Accepted Answer

$I=0.1A$

Answer

$I=0.5A$

Answer

$I=1A$

Answer

$I=2A$

Question 3

Consider the circuit of the adjacent, given $U_{PN}=22V$, $R=100Ω$, $R_1=200Ω$, and $R_2=300Ω$. Deduce the voltage $U_{AB}$ across $AB$.

Accepted Answer

$U_{AB}=12V$

Answer

$U_{AB}=10V$

Answer

$U_{AB}=15V$

Answer

$U_{AB}=16V$

Question 4

Consider the circuit of the adjacent, given $U_{PN}=22V$, $R=100Ω$, $R_1=200Ω$, and $R_2=300Ω$.  Calculate currents $I_1$ and $I_2$ respectively passing through resistors $R_1$ and $R_2$.

Accepted Answer

$I_1=0.06A$ and $I_2=0.04A$

Answer

$I_1=0.08A$ and $I_2=0.02A$

Answer

$I_1=0.07A$ and $I_2=0.03A$

Answer

$I_1=0.05A$ and $I_2=0.05A$

Question 5

Consider the circuit of the adjacent, given $U_{PN}=22V$, $R=100Ω$, $R_1=200Ω$, and $R_2=300Ω$. Calculate the power $P_1$ dissipated by $R_1$.

Accepted Answer

$P_1=0.72Watt$

Answer

$P_1=0.36Watt$

Answer

$P_1=1.08Watt$

Answer

$P_1=0.43Watt$

Question 6

Consider the circuit of the adjacent, given $U_{PN}=22V$, $R=100Ω$, $R_1=200Ω$, and $R_2=300Ω$. Calculate the energy in $kwh$ for $R_1$ after $5hours$.

Accepted Answer

$E=3.6×10^{-3}kwh$

Answer

$E=2.4×10^{-3}kwh$

Answer

$E=7.2×10^{-3}kwh$

Answer

$E=1.8×10^{-3}kwh$

Question 7

Consider the circuit of the adjacent, given $U_{PN}=22V$, $R=100Ω$, $R_1=200Ω$, and $R_2=300Ω$. Calculate the energy in $J$ for $R_1$ after $5hours$.

Accepted Answer

$E=12960J$

Answer

$E=6480J$

Answer

$E=9720J$

Answer

$E=43200J$

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