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To measure the current draw of a strobe circuit, the appropriate tool is an AC ammeter. Strobe circuits typically operate with alternating current (AC), especially in applications like theatrical lighting or certain alarm systems. An AC ammeter is specifically designed to measure the current that flows in an AC circuit, providing accurate readings of current draw in such systems.

While a DC ammeter is used for direct current measurements, a multimeter can measure both AC and DC but it may not be suitable for all strobe applications or provide the precision required. An ohmmeter is utilized for measuring resistance and would not be applicable for measuring current. Thus, the use of an AC ammeter is ideal for ensuring the accurate assessment of the current draw in this specific context.