Question

A portable DVD player requires six 1.5-volt batteries to operate. If the resistance in the circuit is 7.2 ohms, what is the current?
A] 0.21 amps
B] 1.3 amps
C] 11 amps
D] 65 amps
E] 1.8 amps

Answer 1

Current = (6*1.5)/7.2= 9/7.2=1.25A=1.3A option B

Answer 2

Hello!

A portable DVD player requires six 1.5-volt batteries to operate. If the resistance in the circuit is 7.2 ohms, what is the current?

Data:

We have six 1.5 volt batteries, soon, your tension (V)

V = 1.5 * 6 = 9 Volts

R (resistance) = 7.2 ohms

i (Current intensity) = ? (in Amps)  

Solving (Ohm's First Law):  

$i = \dfrac{V}{R}$

$i = \dfrac{9}{7.2}$

$\boxed{\boxed{i = 1.25\:amps}}\end{array}}\qquad\checkmark$

Note: If we consider the template by approximation, the answer would be:

$\boxed{\boxed{\boxed{i\approx 1.3\:amps}}}$

Answer:

B] 1.3 amps

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I Hope this helps, greetings ... Dexteright02! =)