contestada

In circuit a the battery that supplies energy has twice as much voltage as the battery in circuit
b. however, the current in circuit a is only one-half the current in circuit
b. circuit a presents ____________ the resistance to the current that circuit b does.

Respuesta :

egenriether
More resistance.  This is because V=IR.  Circuit A has more voltage V but less current I.  So R must be larger in A.  In fact the resistance R in circuit A is 4 times as large as the R in circuit B.

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