What is the purpose of a diode in a cordless drill or power screwdriver?
a. to rectify battery voltage
b. to regulate battery power
c. to prevent reverse charging of the batteries
d. to provide a reverse direction at the switch

Freya realizes she does not have enough in her bank account to use the debit card. she decides to use a credit card instead. which questions should freya answer before using a credit card? check all that apply. can i pay at least the minimum payment each month? can i make payments on time and avoid late fees? will i have to take out a loan? how much in finance charges can i afford to pay? should i talk to a consumer credit counseling service?